Well, without this type of ability type requirements, all fights would boil down to DPS ASAP, which would be boring.
There are I think 3 end bosses in Castle (we are talking scenario, right?) and all of them can be done without CC. Even the Padurii, you have to kite her around with pathing in mind 'till she separates from the orbs. Vampire's AoEs can be avoided. The other one I don't think was anything special.
The Scenario types, I agree. Funcom agrees too and they are coming, but I think you have already noticed they are hard-pressed when it comes to resources.
There should be a new scenario, of a new type, coming quite soon (related to Tokyo); I think it was meant to be paranormal investigation or something, IO ain't sure. There were also talks about PvP scenarios (not my thing).
Joel prefers to postpone releases rather than releasing bugged content, which I appreciate a lot. Hence, patience. It has always been worth it so far.