Worst Launc ever? No. Not by a long shot. That award goes to either Diablo 3, FFXIV 1.0, or the Burning Crusades, IMO.

Was it a good launch though? Oh god no.

Frankly this launch could've been handled far better IMO. A queue for the instances rather then RNG lottery, a bit better Q&A testing to avoid instances like Susano's Prison, and just general improvements to avoid things like Mr. Bahn's Wild Ride.