It's come up a few times already since the live letter/patch notes, so you're not alone on this one. Unfortunately, this is probably the sort of decision that was made behind closed doors weeks or months ago, with no player feedback, so whatever they're going with - even if it turns out to be an absolute disaster - is probably just going to happen, and doesn't stand much chance of being changed or fixed for another 1-3 months.

Assuming there aren't any mitigating systems in place that we haven't been told about, and 2.2 will work exactly the way the game would now if Myth gear were i80 instead of i90, then it's going to be a really bad system by almost any measure; it's almost not worth going into exactly why it's bad, because the reasons are so myriad that you'd have to go on for pages to really articulate it. The idea of it alone is pretty demotivational, and at this point I think I'd genuinely be happier if they said that they were delaying the patch to put 2.2 back in the oven for a month. It's really either deal with it or leave, though; there's no direct or speedy line of communication between us and the development team, so there's not really much to be done.