Some of the examples given are fairly dubious, were those really intended to be running? I'll grant the Greek vase but the statue of Khonsu has the left arm for

Some of the examples given are fairly dubious, were those really intended to be running? I'll grant the Greek vase but the statue of Khonsu has the left arm forward not in a running motion, but to grip his staff, which has gone missing from this statue. It's his standard pose. I'm not saying the thesis is wrong, just that seems to be a bad example.