The people who'd be offended.. they'd be the same ones who are offended by crew going to the head of the queue at the outbound security checks, I suppose. So incredibly thick that they'd rather their flight departed late than see "them crews" get preferental treatment. Bogans.
Anyone who believes that someone who's been on his or her butt for the last eight to fifteen hours, even in a 30" pitch seat, is as in need to get to bed as a crewmember who, in the case of cabin crew, have walked for most of that time, is too thick to have his opinion considered.