Only 12 lenght more? How long did you play this game? This is perfect weapon for agile character. With same stab damage as bamboo spear, but with sideswings. Combine it with 7 requirement (compare with 16 requirement for Glaive). And do not forget about shitty price.
I meant "only" in comparison to the massive damage difference. 7:12 damage:range is not a good trade at all. And that's comparing a +3 fauchard to an UNLOOMED glaive. Loomed glaive would be 10:12. And yes, a +3 fauchard has the same damage as bamboo spear, but +3 bamboo spear has far more, and 28 more range. If damage and range are considered equal trades, then can we cut 40 range off my pike for an additional 40 damage please?
The damage on this thing is awful. An extreme agi build will glance off anything more than light armor on the swings. Just leave it be. Oh and just in case you didn't notice, the scythe gets the same bonus, and for that you trade only 1 less damage for 10 more range than even the fauchard, yet you would be hard pressed to find someone using such a horribly OP weapon as the +3 scythe.