Trying my absolute hardest to avoid continuing the discussion here, the rule itself isn't that stupid. Call it uniform standards and guidelines, whatever.
@ThatGuy22 said it in the other thread, but if you have the rule, there's still going to be backlash, but when people realize they can't change the NHL's mind by typing on a keyboard, they'll give up. Very few of them are actually going to speak with their money over it.
The problem is making the rule in the first place, but not enduring the initial backlash, and instead completely reversing course and choosing not to enforce it.
They could have gone one of two ways, 1) not make the rule, but stop making this stuff mandatory, or 2) make the rule, and actually stick to it. There's going to be some backlash either way initially, and then eventually people stop caring. The NHL is trying its damnedest to avoid any backlash whatsoever, and in doing so, it comes out looking weak, while avoiding none of the backlash.
Maybe an analogy would be like Guerin trying to both compete now and rebuild through the draft, but in reality, the way he's done it has resulted in not much of either.