From a Rebbe of mine (I think I recall this speech pretty close to verbatim, but I might be off on a bit here or there):
“I don’t know what’s Muttar to say. I don’t know if I should say it. Or how to say it. But I have to say it. When they have a ‘Carlebach Kaballas Shabbos’, it’s not right. There’s nothing wrong with the tunes or the singing. I happen to find them uplifting sometimes. But I feel like to name a part of Davening after someone that that person should be someone very special. I think it’s known-the stories about him and women and him and drugs. And if it’s not known, then people really have no idea who he was. He may have been a lot of good things. Or maybe not even that. But he definitely wasn’t someone to name a style of Davening or Chassidus after.”