There's some fundamental problems with altering rules at every new tactic that comes in to the game, and something which I'm against as a fan.
The solution would seem pretty simple really: Interpretation.
If a player is deemed to initiate or contribute willfully towards a head high infringement, then it's play on.
Agree with not changing the rules, I'm also not a fan of it at all. But with this won't players just learn how to draw a free kick out in an entirely different way?