Well the second paragraph was more aimed at Tankdan I suppose.
HR isn't needed, its a neat thing you can farm if you've got the persistence, if you don't - doesn't matter much. As long as you follow the tier gear.
T8 is doable without UW?
I'll paypal you $100 to log in a T7 group without a UW/Top-gear and survive the first boss with 2 healers and your 1.1 mil hitpoints. Unless you've tried it recently, which you haven't, you have no room to talk. Put up or shut up. It's always the UW9 4mil hitpoint tanks telling others to stop QQing, gee I wonder why.