Length of body and sleeve look perfect to my taste. I wouldn't want it any shorter myself. For me anything less than 26" in either body or sleeve is getting too short for comfort. I've tried to pull off 24.5" back lengths and 25" sleeves...right to bay they go.
Totally and completely subjective, right? And that's the thing; the MF Campus did fit me to a t even in length as designed. Christophe ain't no chump. However, I only dress kinda-sorta oldtimye (tho I would reckon my family and friends would take exception to that lol). In any event, my general style called for a jacket with more body length.
I coulda been plenty happy with the Campus had it more body length. I think I will be plenty happy with this Butterbiscuit (thx again @nick123) once I figure out what I think about the length