Uwaki scans is the group translating the manga though, and no one else wants another group to try and translate the manga themselves when Uwaki is just doing it better. There's literally just no reason to try and snipe a manga from a good group, and it doesn't really matter if this is a first attempt or not. They just shouldn't have gone for a manga that was already consistently and well translated. Even if they did do translation much, much better, there's still not really a good reason to snipe a manga from another group cause you can just take your superior translation skills to a manga that isn't being translated.
Just in case the group sees this I just wanna say, keep doing translations. We'll always need more quality translations on this site, but know that the criticism/hate you're seeing is valid, and it is common. You're never gonna snipe a series without getting backlash, and sniping really doesn't help anybody. There are tons of manga that don't have any chapters at all or just don't have consistent or ongoing translation and you can practice on those. PLEASE, do not make a habit of sniping. It hurts your reputation, it hurts the morale of the group you snipe from, and it makes readers REALLY mad.