So you're complaining that there will be plenty to do?!
-Each expansion has always had stuff that is useless in the following expansion.
-Talent trees? You mean the soulbinds, hardly alot to do for them.
-Anima powers are in Torghast, you collect them to allow yourself to go further in the tower (outside of torghast, anima powers are not there).
-Runes aka legendaries, okay that will allow you to make different builds for your talents/style of play/scenario (raids,arenas,bgs,m+).
-No flying? Are you new, we earn it via renown with your covenant, I am willing to bet it will easier to get it unlocked unlike how pathfinder worked in WoD, Legion and BfA.
-No mounts? WHAT? You are able to use mounts, wtf.
And to finish it off... "sheesh" back at you, that seems like a decent amount of things to do, and if you are going to complain about "but i gotta grind all that out for alts" my argument is, do you really need all your alts to be 100% at all times? I bet not unless you are a top end raider and we all know those players do not complain on the forums about it.
I am liking everything so far, wish I could get into beta and test stuff out myself before it goes live so i know what to do when it matters, but I'll either get it or I won't, I will be playing Shadowlands with my guildmates and enjoy playing and being social with them