Well it's perfectly possible to watch United from your sofa and not a put a penny in if you're watching streams I suppose, but I doubt he was getting at that. I almost do that.
Got BT Sport as it's 'free' with my cable package so watch the games on there, stream the others. Now it's not really free as Virgin Media are sending cash to BT but if BT wasn't on my cable package I'd still buy the same package and stream all the games instead.
Still, suppose the original point was that it's not our money , and that's false whether you have a sports subscription, go to games or buy merch. While it's true that the collective revenue from broadcasting revenue is greater than ticket revenue an individual who goes to games regularly would be putting much more into their club than anyone with a sports channel sub who doesn't. A season ticket costs more than a tv sub, the tv station pays for other content out of that, and like you said, you're paying for Pogba because it's split between all the clubs. Then people who go to games can also have the tv packages as well.