The expectation that the tank should be doing all of this has lead to a lot of problems in the WoW community.
Most of the groups I was seeing looking for people were always "looking for tanks that have done this before!!!!". A lot of times it was people that had done things before, but had never paid attention beyond "hit this one, then this one, and don't stand in that, but do stand in that over there"
Then you'd get the tanks coming in, who are alts of players in the same boat.
Please don't bring this "The tank is responsible for everything" attitude to SWTOR. It causes massive tank burnout(which is why you can't find a tank to save your life in WoW right now) and there are a lot of good players out there that can follow instructions on where to tank, what to interupt(if they can) etc but aren't good at remembering everything themselves.
I myself have never had problems finding tanks for things because I specifically DON'T make the tank do everything. Ranged DPS in particular has a lot less on its plate to deal with and make for excellent group leaders, plus you have a much better vantage point in the thick of things.