I’ve heard of the “deal” psak before and that it applies to general situations.
I hate when people hide behind “you can’t moser me” (and I’ve heard this mentioned by people in real life). Whether or not someone may report wrongdoings, there is no excuse for some of the violations that go on. I’m tired of the “oh others do it too” and “this is our mesorah.” No, our mesorah is to do kaparos with chickens (if thats your minhag) and there is no reason to break the law. We can do both.