Neither. All I saw was a bus driver dealing with an unruly situation to the best of his abilities.
Why does there have to be a greater message here?
You guys want to bring society into this? Here's a better question: why didn't anyone on that bus (ie: guy in the orange vest) step in to help diffuse the situation so that the bus driver could focus on driving the bus instead?
And for the record, bus drivers are trained to drive buses. They're not trained in subduing uppity passengers. Equating this to police using excessive force is stretching it a bit.
So, you don't think while he was being trained they mentioned how to deal with unruly passengers. Sure....