Companies with unclear or ad-based business models, like Twitter, are more likely to end up doing sketchy things to stay in business. Of course you can find exceptions either way but I think it generally applies.

That being said, I agree that centralization sucks, and I'm thinking about symbolically moving my tiny blog off Cloudflare for this reason. The ridiculous thing is that the origin is on GitHub Pages, so I'll have to move off there as well to be coherent.