It kinda seems like the general conclusion is that Wobbufett is balanced by his competition for a team slot plus a team needs to be built around him. If you see him you know your opponent has something that can set up, so there's a third (or probably more) of your opponent's play style revealed right there.
I think it's safe to say that probably more than 90% of teams use something that need to set up, so that doesn't really reveal too much.