Yes, so we need more limited time rewards to encourage people to do content now, rather than being like “eh I’ll just go 1shot it with a 10000% damage amplifier in 2 years”. There’s plenty of participation in transmog farming in old content already, it’s the harder content that needs encouraging.
It’s completely fine for that answer to be “you can’t anymore” for a few select cosmetics. Yeah, sometimes I feel bad about only having 1 CM set and very few Elite PvP ones. Then I get over it because I realize that I simply did not earn those things, and use some other cool set I do have or work towards getting one of the current things that’s going to go away.
No, because again, it’s not just about difficulty. It’s about recognizing cool achievements at a specific moment in time. Getting Elite in PvP in a specific season/meta, because it means you played better than other people and figured out said meta. Maybe you played a class that was weak at the time and still managed it. Getting realm first whatever because it means you beat out the competition at that moment in time.