There is a problem with numbers, though, but it's not something I think the developers can truly fix without just regular squishes, and that's the exponential curve of growth from tier to tier. You can't just always increase by 5% because that 5% grows larger and larger each time. 5% of 100 is only 5, but 5% of 1,000,000 is 50,000, which is 10,000 times larger of a jump from 5.
So when people bitch about numbers, I get it. I get that our item levels are starting to feel meaningless. What difference is there, in my head, between 75 and 100 of a secondary stat jump on a stat that already has 2000? Not much, really, that extra 100 probably translates into .05% of any kind of meaningful change in my overall DPS. Whereas a jump from 10 to 15 at a low item level is a whole 50% boost of the stat and would be very noticeable.
But what can they really do about it? You have to feel like you're getting stronger, and gear seems to be the best way to do that at the moment.