It does NOT work. Looks like you still have a bug !!
I just did exactly as you said - but now pattern came up as a sub forum under compoistes.
SO I did it over and unchecked compsites. Guess what It moved to a subforum under aerodynamics. and YES I did check the Main pattern forum check box each time.

Besides that your comment about more people asking for the change than not - how do you know as I didn't see a poll anywhere asking about it.
It's only Democracy when everyone has a voice !!
My vote is it was a mistake FWIW