[center]I like it for the music and the weapons.

A lot of people obsess over it (namely the "weaboos") due to the attractive characters, decent voice acting/animation and the weapons/combat. A lot of people also hate RWBY for being exactly what you said it was: a series of comedic troupes. Unfortunately, people are expecting a little too much out of this series. There's only a number of people working on for one, and two, it's only in the second volume (not even the second season). 

It has some development to go, that's for sure. A lot of people consider RWBY an impressive achievement with interesting characters and a complex world design with so much to explore and play with. That may be why it has such a huge fanbase (also people love infinitely shipping the girls together for no apparent reason). I hope that helps answer your question.[/center]