Originally Posted by SFTNYC

Not having been there, I don't think I would have taken offense but somebody not accustomed to US carriers may have found it unusual (I recently had a flight attendant who called everybody "sweetie" and have walked into the F galley looking for water and been addressed "what's up babe?"). Informal / colloquial, perhaps bordering on unprofessional (could you imagine CX flight attendants doing this)? but not offensive.