Mobs AND Players can shove my character around?

As a returning player from 2004 I don't remember this being such an issue the last time that I played. Mobs and other players are able to shove my characters around very badly.

As a fire tank this is not a good thing. Just as I hit the button to lay down a burn patch a scrapper charging in to melee the crowd of mobs can shove my character completely out of the crowd, for example. Then I execute the Burn about 5 or 10 feet to the side of the crowd.

My shade trying to go through sewer map doors can get shoved into the ceiling or off to the side by the rest of the team also rushing through the door from behind.

When mobs close in around my tank I sometimes get spit out the side of the crowd into a wall on the other side of the room, etc.

Note that I am NOT talking about any type of status effects such as knockback. This is all normal movement physics.

I've tried a few times to see if my character can push others around, but it is like walking into a brick wall, so I don't know how they are pushing my character around like this. Very annoying and it is making tanking a PITA.

I haven't been on in a week or so as this could be patch related, but generally that shouldnt' be happening with mobs. I'm not sure what the code is setup for with two players hitting though. They finally got around to making pets/NPCs move out of Your way in crowded places though!