Not a big fan of abrupt kickings, but I can definitely understand the urge to do it in that situation. As a random joining someone else's fireteam, it's really not up to you to determine that the team already has enough of anything. Warlocks catch a lot of shit in the KF raid because they really don't have a strong team support super like Shadow Shot and WoD, but they at least have Self Res that can at least save a wipe in the right situation. You didn't even bring that to the table. I will say this though, an extra Titan with smash does wonders in the Golgoroth pit when the Taken round comes.