Still allowed one guest. Then again, this might be just a prelude to forthcoming enhancements...
FWIW, since lounge wardens reserve the right to deny entry to a SEN lounge and direct you to the FTL upon very flimsy/fuzzy grounds, I wouldn't argue. It's not "her fault", this is an inherent feature of systems where agents (wardens in this case) have discretion: sometimes they can favor you. Other times they screw you.