All this is the reason i'm running around with an heirloomed iron staff with my polearm alt, even though i prefer playing archer or my 2h/thrower. Blunt weapons is all you need.
But it's a shame to be "forced" to play one class if you really want to help your team.
Saw Urist mentionning arrows would get a little damage buff, so that at least archers can kill light/med people more easily, since that's all we can kill now. Dunno if it was a troll post though, since when someone asked when that would be implemented, he replied "december 2014".
But i agree tincans and other heavy armor should have a bigger speed penalty, since cut deals close to nothing to them, even though all archers/1h(no thrust)/2h(no thrust)/axes deal that damage. And since upkeep is a bit not expensive enough. (imo)