I wouldn't say well regarded. It would be like us and Olsen and Kosmachuk. We hope they have an offensive game and we didn't draft them for enforcer duties, but who knows what the future would bring. I don't view Thorburn as an enforcer, but starting to become one due to lack in contributing elsewhere.
+/- is a terrible stat on it's own IMO, and many are starting to agree. It doesn't take in mind TOI, usage, team/linemate play/strength, and is subjected to variance more than most stats (mostly due to SH% and SV%).
Fehr was severely out-chancing and out-shooting his opponents but a combination of injuries and terrible puckluck (ie: natural variance) lead to a pretty soft year. Fehr was actually creating offensive chances at the same rate as he has been consistently doing the last 4 seasons. Just sometimes it doesn't come together.
Glass was given tougher assignments than Thor when they were separated and much more 5v5 icetime per a game... but it can be debated who's worse, so I will concede there
With Wright, one point difference is hardly what I'd call grandiose enough sample size to comment on offensively, but I had called it a wash anyways. Defensively you don't need stats to see who is better between the two. But if you want, Thorburn is a lot more heavily out-shot, out-chanced and out-scored on than Wright
relative to their icetime. This icetime is another source of evidence, as you can see that Noel trusts Wright more as Wright has increased his icetime, took Thorburn's spot on the PK, and also is trusted with tougher match-ups far more often.