Apple's repair providers don't perform board repair, you're promoting a false equivalency. It's like telling someone with a flat tire to take their car back to the dealership.
For the record, Rossman cannot get the specific parts that he wants, you're saying that he could pay $600 for a first-party logic board replacement when the only thing wrong is a blown capacitor that costs a nickle.
Rossman could get real Apple parts but he doesn't want to because it'd hurt his views.