Almost certainly the case. The theater's capacity is 800, and I imagine that studio VIPs and the great and the good of Hollywood whom none of us know from Adam would take up a decent chunk of it. The producers and actors from Discovery would also have taken up a chunk. After that, it's just prioritizing for publicity reasons. Casts of the prior shows get invited before writers no one would recognize, hot pop-sci personalities get invited before tie-in writers, and so on, and so forth. Invites would have less to do with what someone has done for the franchise in general or DSC in particular, and who's more likely to get a pull-quote on a website or local paper's TV section.