Myles David
Senior List
Not sure you have to be running flat our for it to be a bump.
Call it what you will though, but he had other options
When you have a guy coming at you at full pace and perform that act you are a chance to cause damage to the head because there is still going to be two players hitting each other at pace
Get low and brace to tackle or reach for the smother.
Tell me what the other options were because the options you listed aren't realistic. Remember that this happened in less than a second, in a game that requires you to tackle the opponent. You won't and can't give a logical alternative.