It is an interesting idea - but more interpretation which is messy. In a situation where a dismissal is too much and you can replace in 10 minutes, the net effect is a sin-bin and no new rules required are there? Appreciate they’re subtly different.
I am willing on week 1 to accept Watts was clear direct contact with the head, whether intended or not - the bar is set.
Same for the tip, that’s the threshold.
On the watch back, I don’t think keeping Watts on the field was the reason we lost, but it might have been closer.