The thing is I don't recall tking when I was playing. If anything I maybe tked 2 people max in an hour of play time, and I was one of the top leaders on the scoreboard.
Sure I occasionally tk, but my role in game is a risky one and tking happens. My role is a light cavalry role that goes in for support and kills footmen fighting teammates and when the teammate at the last moment rotates position with the enemy, that is when the tk happens. In the long run, my tk to kill ratio is very low.
Perhaps do you know the names of the people "complaining"? So we could get an idea of who they are..
Btw, I never teamwound if someone is blocking the way. Horsebumping maybe if its a narrow passage and I can't outmanuever the teammate... So it would be considered an accident really.