There was nothing considered odd, dangerous or controversial in the cult of Dionysus?

Question

There was nothing considered odd, dangerous or controversial in the cult of Dionysus?

Answer 1

Actually there was, even in ancient times. The play the Bacchae for instance makes it clear such cults were considered immoral or seditious because of their secrecy.

Answer 2

http://www.pantheon.org/articles/d/diony...

Of particular interest for you would be the Maenads.