Because Kirk apparently had orders to loiter with intent, to meddle whenever possible, and to satisfy idle curiosity
Really? Those were Kirks orders?
Or is this just another worthy submission to the Timo hall of fame?
I'm worried that the putative S31-commandeered vessel would be more focused on finding things to make them strong.
Because surely they would have looked at their sensor scans, noted the lack of a prominent "Ask me about my weapons of mass destruction" bumper sticker and decided to move on.