Of course this is totally a respect issue.
He should think that he is lucky to be alive after trying to kick anyone. He should think he is going to die.
I am more disturbed by the fact that you think so little of your safety that you climb on him out in the pasture with nothing on him. You only have to have him act up once or twice and you get off as a result and you have TAUGHT him to misbehave. He wins if he misbehaves.
You should be serious, halter him and treat him like a trainer would or will will have him so spoiled that no trainer can get him back to where he should be.
And crow-hopping when you ask him to move forward? Yes! It IS a big deal. It is just another sign of complete disrespect. If you do not get him respectful and moving when you ask -- both on the ground and on his back -- he will end up irreparably spoiled and could hurt you badly.