I agree with that. They tried to do too many things at the same time.
I thought that releasing in the US was a nice idea and they succeded.
However, when they started annoucing that the girls where learning chinese and that they were planning a debut in china at the same time...
That, I found it a bit too much. I think they should have concentrated their efforts on Korea and the US rather than trying to make it everywhere.
I think they should have wait (for the debut in china).
If you look at the comments on omona, people are tired of hearing Nobody in different versions...can't blame them