Speaking from the perspective of DPS, yes, yes it is common to have to wait 30 minutes or more in the queue for anything. Not to mention, I think Titan (any difficulty) is the most hated primal for players to fight. Whenever I queue up on Trial Roulette, I sit there, fingers crossed, repeating the mantra "Please don't give me Titan. Please don't give me Titan." And when it does give me Titan, I say the Queen Mother of Dirty Words.

Some say "If they released more tank/healer classes then the queue times would be shorter" except that is not the case. The people that enjoy playing those roles, or are willing to do so outside of their own linkshell/FC-base will be the ones primarily doing that. Those of us who won't touch those two roles, for whatever reason, will continue to NOT fill those roles.