They should really make these things warbound and remove the valorstone cap. Other than those two things, I'm glad the upgrade system is here to stay.
All this talk about respecting players' time and we are right back to weekly caps on crests and flightstones. Just let people play at their own pace. SO WHAT if people have the time and can gear up their characters fast to go after their KSM/KSHs, AOTCs or CEs... Artificial caps ruin the experience for players by turning the game into a chore. And I like that catalyst is coming back (great for offsetting crappy loot RNG and for transmogging) but I am still lukewarm-ish on this super complicated upgrade path stuff. I think the upgrade systems deserves a 2nd look overall.
"Popular"
When I have a bad day, I come here to read the comments. It always makes me feel better, knowing that there are people that are whining because of everything. Their sole purpose in life is to find something to whine about. People call this system "complicated". You need 2 active brain cells to understand how it works, so idk how it can be complicated. Others are calling it a chore, when it is the exactly opposite. Having the crests capped on weekly basis means that you won't farm 24/7 in the first weeks to gear up as fast as you can. Flightstones cap have a purpose: to not gear faster and easier than it is already there. It takes 5 weeks for someone who doesn't raid mythic (which considering the statistics on raider.io and wow progress, it's the majority of the players) to upgrade everything in every slot to the maximum (considering also the vault drops) and this leaves with one upgrade that costs 30 aspect crest / week. The season is more than 20 weeks long, now you can do your own math. This is why this game has less and less content: because entitled whiners have the right to an opinion, and blizzard somehow decide to listen. They made everything so easy, that you can play the m+ content that drops the max rewards (18s-20s) without even thinking, and yet there are players that consider it is too hard, and they have the guts to say :"The problem is not the total lack of my skill, the problem is that the content is hard".