That is sort of the start of a strawman argument because Twitch bans for a lot of things, not just being a convicted pedophile. But even in that case I don't think it is fair to completely disallow somebody from appearing on a TV network. That also isn't what I would consider "promotion".

I don’t know if it’s a straw man when the actual policy this article is about mentions it

> The company is currently defining “serious offenses” as incidents of violent extremism, credible threats of mass violence, membership in a known hate group, sexual exploitation of children, and nonconsensual sexual activities, among others.

That is for actions off of Twitch. You can get banned for actions on Twitch that are not bad at all or completely accidental