Ironically, reading the TL notes at the end makes me reread the chapters again and realize the complainers are actually partly right. For sure, it's not MTL, but the Group DOES get things wrong and interpret sentences in the wrong way, resulting in things that just don't make sense or sound awkward. Just because your translators are N2 certificated doesn't mean they are good at writing in their own language.
Though, I will admit that it seems they are making an effort to improve. With every new chapter, the accuracy increases and stuffs sound more correct and natural. The very first chapter they picked up was a truly disgusting job, barely different from a real MTL. But this latest chap has quality that is somewhat close to the previous TL.
English isn't my native language either, and others for sure are allowed to criticize me and SHOULD do so if I released shitty quality work, even if free. I don't think the group is as terrible as people are making them out to be, but make no mistake, the mentality that just because you're giving out free shit, people aren't allowed to complain is truly moronic. If you take a dump on my bowl of rice, of course I'm gonna complain. It's free shit, sure, but it's shit and now my bowl is no longer edible. Not to mention it prevents others from seasoning it with actual good stuffs, because now there is a big dump on my bowl.