Batman asked the Chair "What is The Joker's true name?"
The Joker's true name is not "there are three Jokers". Now, if the Chair had expanded on The Joker's name by saying, "Well, his name is Bob Vance, but there are actually 3 versions of him running around" that would be... Better, at least.
But that's not what the Chair said. It just told Batman "Idk but there's 3 of them lol".
By the way, how do these 3 Jokers work? How long is the new 52? 6 years? How do THREE FREAKING JOKERS not run into each other ONCE or cause a similar incident at the same time? Are they a council? Do they have an agreed upon schedule?
It's just awful. Horribly, completely, awful.