I don't have anything against his thoughts on the XJ. But much like a Volvo 240 if you start adding swoopy bits (and crappy pointless grill guards) here and there it pretty much ruins the whole thing. There might be a way to update this design but this isn't it. It looks like a Liberty humped a Grand Cherokee and then that offspring went back and procreated with an XJ again. Seems hacky to me although the video was fun to watch and it was cool he could just bust it out with a desk and paper.
To be fair I can't stand the Chip Foose aesthetic so I have a severe bias. For me it is the epitome of stuff geared towards unbearable boomers and those with a similar lack of taste. Also see Boyd Coddington.