There is ZERO reason why a level 25, Elite or not, should be able to CHAIN STAGGER AND KNOCKDOWN a fully geared LEVEL 60 TANK. It’s ridiculous. Remove the ability for any PvE mobs 15-20 levels lower to have any Stagger/Knockdown.
Why this is even a thing in this game is beyond me, don’t even get me started on how mobs can just push you around the map by WALKING IN TO YOU.