This does bring up an interesting observation… The Temporal Agents apparently have no qualms about coming to not only take back their gadgets and gizmos after someone from the past uses them, but seems to just drop in on the past and cryptically hand out missions to those same ancestors out of literal nowhere! This time travel stuff can be so mentally damaging that even those agents trained to directly work with it (Captain Brackston, for example) can mentally break. Whatever stress La’an was shouldering at the start of the episode has now surely compounded.
You would think that Starfleet of the future would have put together some form of “Temporal Psychology” department, or something. People who’s jobs are to go back to ancestors emotionally effected by time travel, and help them deal with any trauma. Telling La’an to, basically, just “shut up and suck it up” is a horrible way to deal with someone who, essentially, just saved your existence. I get she can’t talk to any of her contemporaries, but surely someone from the past could pop-in and act as a counselor of some sort.
IDK… I felt the temporal agent’s cold response to what La’an had to deal with was rather un-starfleet.