I dont know guys, I have tried to do the 2h into pole thrust rear and most of the time the cav just hit me before I can even reach them.
Seems like it just promotes more careful cav gameplay instead of just charging into a whole team. BUT it also looks like non-lancer cav are kinda fucked because lancers can hit you before you reach them, but 2h/1h cav have to get real close to bumpslash you or even reach you, so overall it seems like a "nerf" to the bumpslash tactic the devilize has become known for.
Atm the glance thing is a nice add in but once all the 2h'ers actually start hitting X and using the polearm mode, cav will be fucked.
TL:DR: I think the rear length should stay the same for poles as the glance thing sorta balances it out, but 2h alternate polearm mode shouldnt have the ability to rear cav as it makes 2h even more master race and fucks over the cav.