Need to comment on this since clearly some of y'all didn't know what you're talking about.
About the "temporary license and it will be gone after certian period"
I get this concerned over licensed stuffs on digital platforms. But first off. Viz Manga came directly from Viz, aka the English publisher of several manga series in the US. Including Komi! They are literally the official publisher of the series in US/Canada that offers simulpub releases in the first place!
As a fun fact, Viz was originally founded by Shogakukan, and currently being co-own by Shogakukan and Shueisha, two well-known manga publisher. The former is the Japanese publisher of Komi Can't Communicate in case you didn't know.
What I'm trying to say is, it would be really weird for a US manga publisher to lost the rights to a series that their parent company owned, wouldn't it?
Also for the case of the Viz Manga app. All chapters are able to read and download if you buy the monthly subscription service, which is only two US dollars per month. (That cost less than my lunch!) The only caveat is the 100 chapters per day limit, and since it's a subscription, you don't own anything, but it still grants you all access of Viz's library, new and old. Most subscriptions are at least more expensive than this. So if you can't afford it, either you're broke (which is fair, you probably have more important things to spend on) or a cheapskate who only wants to get stuffs for free.
By the way, you can also just buy the released volumes outright. But it will be much more expensive than what a typical manga cost in where you live, since it's based on the US prices of said manga. (Komi for example costs 9.99 USD for each volumes) So it's not great for people outside US/Canada. Then again, there's that two dollars per month subscription. Might as well get that if you want to read Viz's library and buy the books elsewhere that suit your case.
Either way, this concerned was dumbfounded at best.
The Region-locked issue/Simulpub is a "bad" thing.
The formet is a simple case of licensing. Viz, being a US company, only have licenses to publish their stuffs in US/Canada for the most parts. Anything outside that is up to the Japanese publisher.
Yes, it's suck the official simulpub is only in US/Canada. But it getting simulpub at all is a good thing. Readers can now support the publisher and in turn, the creator, directly through the Viz app/website.
For people outside US/Canada. (myself included) There are other way to read Viz's simulpub releases, either websites that host them (i.e. pirate time) or using VPN/APK to access their website and app respectively.
(For me, I use VPN to download the Viz app from the Play Store. After that it's all smooth sailing since the app itself wasn't region-locked, so I can read the latest chapters without VPN handicap)
And for the latter, don't give me the "you don't support the creator this way" bullcrap. 'Cause it's not true. The publisher get to knows how many people read a series from simulpub, and lay the message to the creator that way. It might not be direct royalty payment, but it is still something you can support the creator directly.
(As an example, The Hunters Guild: Red Hood didn't perform well in Japan and eventually got axed pretty quick, but it got surprisingly high US reading counts through simulpub on Manga Plus that Viz decided to publish the series physically anyway. It's really rare for a canned manga series to get a book release in the US. So this shows how simulpub can help a series in some way)
Hell, simulpub happened in the first place because the publisher want people outside Japan to support their titles directly and on par with Japan. If you think simulpub releases are a "bad" thing then you don't know how much it helps getting a series to reach more people and thus, explode in popularity.
Like, Spy x Family. One of the most popular series last year, thanks to the anime adaptation. Got its first awareness from the fact it got an English simulpub day one on Manga Plus. Thus, English readers got curious to know what this manga was at the same time as Japan. Reminder that the creator was essentially a no-name before Spy x Family. But thanks to simulpub, both Japanese AND English readers got to know his works and spread its awareness to more people than it ever could.
Anyway, that's the two points I want to address in this comment. Sorry that it's excessively long and explaining-heavy, but I want to make sure most people here understanding what I'm saying, and found my comment useful. Since some people here have shown they know absolutely nothing what they're talking and just want to read the latest chapters for free on this site.