So after all the effort and expense of rewriting the game, adding content, reworking combat, launching a new engine, and advertising, when a player shows up, eagerly makes a brand new character in this wonderfully OP new class you've got, hops in an easy mode dungeon and dies repeatedly.... fixing it next week is a good idea?
This dungeon screw up is a big "go play something else" sign to all those new and returning players. And we're just going to let it sit there for a week?
There'll probably be another "sorry we blew it" box for free on F10, but the players who left this week won't know or care what's in it.