To be fair, this scene was heavily edited in the dub. As I recall in the sub, Bit walked in on her while she was preparing for the bath (naked) and hilarious antics followed until she got pissed off enough to launch missiles at him. Seems almost justified, but she is pretty crazy. XD
Yeah, it's hard not to feel sorry for the man who...wants to be king. =P
I definitely would agree that the main point of NCZ was to have fun and enjoy the antics of the team and their intense battles. NCZ really tried to have a credible plot, but most often it turned out silly rather than serious. I still really enjoy the ending, especially the battle between Bit and Vega, but I agree that it lacked a real villain to make things interesting.
If you get the chance I would definitely give ZoiRAB Genesis a try. It's very reminiscent of Chaotic Century and has that serious/epic feel to the plot, plus there's a pretty evil main villain. But Genesis also has episodes that are centered around humor, much like NCZ. Overall I felt it was a well executed mix of NCZ and CC, and it's probably my second favorite series overall.