So if the player with the ball thinks they're likely to lose it they can ride into the defenders bike and claim it wasn't their fault. By your rule it's the defenders responsibility to get out of the way of the attacker who is in possession, hence the person who caused the bike on bike is the person protected by the rule.
While you're at it lets go the full way banning screens and picks, lets also ban players from holding their mallets in their left hand just like they do in grass polo. Can we invent an offside rule too?
So if the player with the ball thinks they're likely to lose it they can ride into the defenders bike and claim it wasn't their fault. By your rule it's the defenders responsibility to get out of the way of the attacker who is in possession, hence the person who caused the bike on bike is the person protected by the rule.
While you're at it lets go the full way banning screens and picks, lets also ban players from holding their mallets in their left hand just like they do in grass polo. Can we invent an offside rule too?