Whats the point of tempe plus other disappointing mechanics?

So endgame is a massive disappointment.

But lets start with the temple mechanic - just complete 6 alters and have a half hour pointless jaunt around a map that you made yourself for some mediocre upgrades... Not sure this is worth the time. As usual every enemy is overtuned even though i can wipe a boss in 5 sec. Its the swarm of ranged attacks and molten whatever that comes through the walls and floor etc. I suppose i need to cap all resists ASAP.

Also please fix every time i leap slam near a wall i get stuck inside of it and have to re cast. Surely this was picked up in testing. I mean you want us to combo right?