I think you're missing the point of the comment. There is no judgement on their capability there, merely an observation that a JS bootcamp probably doesn't adeq

I think you're missing the point of the comment. There is no judgement on their capability there, merely an observation that a JS bootcamp probably doesn't adequately prepare you to manage a typical startup's entire tech stack, and if you try to do so with only that training/experience, the result might not be very good quality.