I admit that you do have a point there.
I also admit that those books might be well-written with some good stories as well.
But knowing myself rather well, I don't think that I would appreciate the stories in those books due to the changes in the crew which have taken place.
Which is a reason that I look for Star Trek books where I'm definitely sure that Janeway's death and other unpleasant events won't be mentioned at all.
I'm pretty sure Janeway will return at some point. If and when that happens would you read the 'catch up' books then ?
Maybe. You'll never know. Nothing is impossible.
Depends on which way she's brought back and the general development of the ongoing story.
But remember that I did start watching Voyager again after a two-year pause caused by the events in "The Gift". I borrowed VHS tapes to catch up with the ongoing story. Unfortunately, my "reward" for that was "Fury" so I'm a bit careful now.