I'd disagree with this. Frequently they look through peoples records. Whenever someone dies it is the first thing they do. They also on one hand talk about holo decks being a private space but how often do we see them walking in on peoples' sims. You could totally just shut down the sim from the outside if the person inside is not responding and that would more readily respect that person's privacy (but isn't good for entertainment nor shows that Star Fleet is also composed of "humans").

When someone dies or goes missing, not even an hour goes by before someone like Geordi or Riker is sifting through their personal log entries. :)

QUICK! Let's look at their personal logs!

Like come on guys, there's more than personal logs. There should be more barriers before you go there. But to also be fair, it is stuff they know is going to be used in that way and it isn't just a log of everything they've said in their room. So there is a little more consent involved. I don't think you can really give consent to always listening devices.