Yeah. We're left just wondering why she couldn't have set an automatic transport for all of them including her, like happened just last film when Kirk and party beamed from Regula I to the Genesis Cave. Really, tweaking her last line in the scene would have done it. Spoiler: How I'd handle it I made an additional tweak regarding ''Mister Adventure," because if she's really going to be jamming signals and not partying with the guy, she should just leave him in the closet and let security get him out. Also, I traded in the spoiler about a rendezvous somewhere, for a better answer to why she didn't get turned in by "Mister Adventure" after dumping him. I felt an acknowledgement from Kirk to her ingenuity and bravery was appropriate, so I ended up splitting her last line into two.
It's a good scene for her, but her absence throughout almost the entire movie is more noticeable than if she had simply beamed up with everyone else, even if she wouldn't have had much else to say or do. Part of the pleasure of the movies is that we get to revisit an ensemble cast.