There's a balance between breaking the web and being as strict as possible. Saying we fully allow Facebook tracking isn't right [1], but we admittedly need more strict-mode like settings for privacy conscious users.
We do block Facebook at least as good as uBlock origin with EasyPrivacy. The referenced code is in a separate component which does the same as Disconnect blocking.
We're taking this seriously internally and we'll iterate on where we are to improve the situation. We're looking at if we can polyfill a local JS resource instead for example as one option if it doesn't make further requests.
[1]: https://github.com/brave/adblock-lists/blob/f25b698aff4666bb...
https://github.com/brave/adblock-lists/blob/f25b698aff4666bb...
https://github.com/brave/adblock-lists/blob/f25b698aff4666bb...