Not my style to ignore, I would counter attack personally, but agree its probably best to let go.
Guy clearly just wants attention/a job. I mean, imagine being so f**king stupid to move to California to work for a company that tries to convince other companies to do rope climbing team building excursions.
I'm sure team building weekend retreats are big right now in the age of Corona, though.
Even with a dad as a head coach its clear he has already failed at his first chosen attempted profession and it won't be long until he comes limping back to the east coast because the rent is too high in LA. Probably like 120k in debt already too from school...if he'd have taken that $ and bought stocks in March he'd be rich, now he's a pretty good bet to end up like Dirk Diggler on Hollywood Boulevard, giving hand jobs to guys in pick up trucks behind the IHOP.
Could be wrong.