Since the swing animation for polearms on horseback is extremely goofy, doesn't make any sense, and is very difficult to read, I'm gonna have to vote no on this one.
Also, the LHB has way more range than other swingable weapons like the longsword, morning star, etc. It's actually pretty broken in an overpowered sort of way.
Personally, it's a bummer for me when I see some asshole waving his hands around at random, not even touching the pole, with a LHB helicoptering around him. What we REALLY need is a decent animation for these weapons, not a buff.