As a reader I kindly ask that you and your team continue regardless of whether they do or not.
The whole quitting because someone else is doing it is lame and, in my opinion, there's still plenty of reason for you and your team to continue scanlating.
- First and foremost, if you like the manga you're scanlating
- If you want things to be in a quality you prefer and value
- In the event that, for any number of reasons, either you or they end up pulling your chapters or they're taken down
- In the event that, for any number of reasons, they drop or cannot continue their translation of it
- Maybe you weren't the first to release but people will read from groups they prefer and/or don't have blocked anyways.
Just my two cents.