Scoey
Tony Shaw (54)
The law we are talking about 10.4 (i) relates to dangerous play of tackling a player in the air in either the lineout or general play. It specifically lists all types of contact (a player must not tackle nor tap, push or pull the foot or feet of an opponent jumping for the ball) so it doesn't have to be an attempted tackle. It basically covers any contact.
This is where we differ on our opinions. The specific section (10.4i) is entitled 'Tackling the jumper in the air'. If it were meant to apply to 'any contact' with a player in the air, it would be entitled 'Contacting the jumper in the air' or something similar. You can see why they didn't call it that though because every time a player jumped and was touched they would earn a penalty. This would remove any contest for the ball entirely. So they made it more specific so it was clear, the type of situation that it applied to.
It can be broken down further if you like. It lists four actions that a player must not do to another player in the air. Tackle, tap the feet, push the feet or pull the feet. Three are clearly deliberate actions and the fourth is somewhat subjective - tap the feet. All four actions relate to a player that is doing something other than contesting the ball.