Two things.
You've all not met the guy in RL.
He's a terrible player. Technically proficient but there's no soul in his playing and his instruction is awful beyond belief. I've said it before I'll say it again: He does a disservice to the instrument of bass and to music in general.
Yeah, I have met him. He's a super cool guy.
Did he steal your girlfriend in high school, or something? Not thinking he has any soul is one thing, but based on the ridiculous hyperbole--Seriously, "awful beyond belief?" That must be why he keeps getting work and you remain anonymous internet troll. You obviously have some grudge/personal beef that simply makes you look, well--jealous.
So, what are your credentials? You can say something as often as you want, but it doesn't make you right. It simply makes you look like a tool.
So, what makes you an expert? How's that 15 watt Crate amp working on your world tours and Nashville recording sessions?