Mostly just fine-tuning.
The Fighter in RELIC gets the "campaigner" ability that lets armor occupy 2-fewer slots, at the same time they get "notches". Notches is from several other GLoGs so I didn't want to lift it for GLAIVE. "Campaigner" seemed like a not fantastic talent all by itself (or one that would rarely be taken).
It was important that a Fighter not be as encumbered by armor as other classes. However, since GLAIVE is classless I didn't feel the need to discourage anyone from suiting up in full-plate and trying to lug spellbooks around if they wanted to.
All of that combined to inform the change.