Well, to be fair, their original Harry Kim is dead, making the current one the newest member of the crew until 7 of 9 shows up.
And for all we know, the ship records may still show him as dead, therefore unpromotable…
See that woulda been an hilarious spin. Just have the ship record his death and now the replicators won’t recognise him, doors won’t open, go the whole boimler / better off ted. Eventually they have to trick it by ‘re-hiring’ a harry kim to get him back in the sytem .
And now he gets no promotion due to being far too inexperienced in his career.
I’d have loved something like that.
I’d personally have liked them to have not let that go, and have a whole character arc with Harry struggling with the knowledge that none of them are the same people he knew, though they act identically, differentiating between things he did and the original and so on…
Resetting back to status quo after events that should have had a lasting impact is one of these things that bothers me in Voyager.