MouthnHoof, do you mind if I put that in the OP?
Anyways:
Current results as of now:
36 (yes)
18 (no)
2:1 in favor of yes at the moment.
I do not think this change would make anything unbalanced. The longer length cut weapons usually outshine the shorter ones in almost all regards, unless you're willing to accept the cons and use a shorter weapon.
I do not have much experience with stabs unless it's the warhammer's, so that is still negligible experience lol.
I don't think it should be much of a stretch to balance their sweetspot locations, especially since the shorter weapons aren't necessarily that much more powerful, while being less versatile (if it's not an axe) being more useless against cav and worse against mauls on average.