But in general I agree, there's too much fascination with Arduino et al. that I think's mid/long-term harmful to those that stick with it personally.
A lot of his videos should be prefaced by "it's interesting, but you don't need to worry about it unless you're working on the types of projects I'm paid to work on." Without this disclaimer, PCB design becomes less accessible. It's akin to teaching basic chemistry by starting with quantum foundations and insisting that everything must be derived from that.
Phil's Lab is pretty good 'zero to DDR' though I think, for PCB at least - you might need some awareness of basic electronics first, he does schematic walkthroughs and projects too, but it'd probably seem pretty quick and unexplained if you're coming to it not knowing some fundamentals.