These tech freaks have a mercantilist, zero-sum view of how the web works: any link elsewhere is bad and anyone else profiting is your loss. They didn’t use to think this way but have gradually built a bubble around themselves over time, losing all perspective of their own users in the process. This also explains the move of this tech cohort to the regressive right wing.
Most of the streaming sites are serving ads from the same subdomain these days. I think Paramount might still be separate? But causes issues when you try to log in as well, so have to pause Pihole to log in. Then ads are (sometimes) blocked :)