I wouldn't call him lazy and undisciplined, his mentor was Serge Nubret...and he has better body parts and flow than Evan, you can't develop that by being lazy and undisciplined...I think it is something else.
You think it is coincidental that he stops losing fat at the point were it start being excruciating ?
getting to the body fat levels he has is hard ya but not a big deal, going to Evans level is what separates the men from the boys, fine Parker use whatever words you want to use, don't use lazy and undisciplined, I don't care. It does not change the fact the he is not tough enough to go further.