The song she was dancing to was introduced to us as being a favorite for operators. Post before the Q+ was about backchannels and post not long after said not everything was intended for anons. considering that, I’ve always taken it to be comms of some sort from Q+ masked as simple levity on impeachment night.
Alternatively it really was just for the sake of levity. Q+ wanting to assure anons morale was fine and we shouldn’t worry after impeachment passed. The song makes me think comms is more likely, but either way I doubt it has much to do with the crazy alien lady personally. Q or Q+ probably just found it in the QAnon hashtag and decided it was useful to share for one reason or the other.