Realistically, if such a word can ever be applied to any Trek episode, the stranded Riker should not have been allowed to participate in any of the work, in fact, he should not have been on duty at all. Eight years stranded alone, and he's put back to work like he was just off for the weekend.
Meh, you gotta give them some leeway there. This is the same show that put Picard back to work after the Borg assimilation, and they even threw old ass Scotty a bone after being retired for god knows how long & living out of date in knowledge
They seem to follow the logic of once an officer, always an officer, & let them work through it