Oh boy. Please save the anticipated sarcastic response, but it sounds to me like you don't understand what a conflict of interest is. A conflict of interest arises when an individual or organization has multiple interests and when serving one means working against the other. In this case, your favorite ground dwelling dwarf and mine is receiving benefits from the company whose gear he is touting while representing himself as a neutral and objective gear reviewer, by which he also receives benefits in the form of ad revenue and personal promotion.
As mentioned, the gear itself is the (Known) benefit, which he undermined by labeling the segment "Satisfied customer" and by saying he wasn't paid and didn't want them to "Give" him a guitar — he wanted them to build him a guitar ? That's some crafty linguistics right there. Not quite lying, but lying. And he further went out of his way to claim he wasn't being influenced by the admitted relationship, which was contradicted by his receiving the guitar as compensation for prior video work. That's how I understood it anyways. Finally, the end of the video was basically a Heritage commercial.
You like to think you can maintain objectivity in your assessment of the guitar by just listening to it, but that's naive. You're listening to a world class guitar player for one, and second you don't know what kind of processing he's employed to get the tone he is getting. And while you might like to think your psychologically unique, the enthusiasm he displays — which could be genuine or not — will probably subtly bias your opinion about Heritage guitars. I don't know if you're a big fan of David or Heritage or what, but seems like this is personal. Maybe 'cause I pointed out your boss is probably not the altruistic benefactor you seemed to think? I dunno, I don't care. Hate to burst your bubble bro. Watch the vid, like Tim Pierce, like average Heritage LP's or not, it's up to you. In the meantime, I'll continue to enjoy doing what I do, which among them is constructively pointing out BS and questioning conflicts of interest when I see 'em.