I'm frankly not sure how you can just "feel like you're a dps".

I mean, if you're tanking correctly, you need to be popping defensive cooldowns, positioning, and supporting your party defensively during party-wide damage, etc. Those are the "meat and potatoes" of tanking. Aggro management never was anything of importance or enjoyment.

Literally, at most all you did was one aggro combo on single targets like bosses. In all other circumstances, nothing has changed. Tanking trash hasn't changed at all. So really, the only change in Aggro management between 4.0 and 5.0 is a set of 3 GCDs, or 5 seconds and change.