As you can see, the back checking Canucks player didn't touch him, McDavid just lost an edge. Complaining to the ref, falling over while doing so.
Listen, I love McDavid for his skill and what he brings to the game of hockey, but this is a trend I've begun to see with him, if it continues, he might be worse than Crosby in the whining department.
I can't really blame him though, he's stuck in Edmonton and with each passing year, they're wasting more and more of his prime.