Yeah...but then Bayo 2 did not do well either. I'm rooting for Platinum as much as anyone (hell, I bought a Wii U just for Bayo), but I wish there was some actual indication that Nintendo was interested in working with them again.
I dont consider Bayonetta 2 as a failure. Hell, Bayonetta is in Smash now! This is hard to meaure but the ip definitely gained some sort of boost