Because it is the same argument underneath, and I will put it as plainly as I can since there is a genuine question buried in forty posts of preference. Everything anyone wants from a casino splits into things you can check before you deposit and things you cannot.
Games, bonus terms, wagering multiples, limits, payment options, what the footer says about the licence. All checkable in twenty minutes.
Whether they pay a large win without a fight, whether the account survives a change of ownership, whether anyone answers when it goes wrong. None of that is checkable and all of it is what you are actually choosing. A licence does not guarantee the second list. It gives you somebody to complain to about it. That is a smaller thing than regulated players claim and a much larger thing than offshore players admit.