Interesting. I'm using uBlock Origin with pretty much all 3rd party filters enabled, and only have 19 requests blocked. Would you mind sharing what tools you're using?
Block `twimg.com` and see the count climbing to over 460 -- because of the avatars in the comment section. Personally I block such ubiquitous hostnames by default (using uBO's dynamic filtering), as they are as good as trackers (for Twitter in the current case).