I think "everything" is an overstatement. Browsers included the compromised intermediates in their CRLs within hours of disclosure.

So this isn't like Firesheep [0]. Yes, there would be vulnerable traffic, like the git client this thread is discusing, but it's not "everything"

[0] https://en.wikipedia.org/wiki/Firesheep

If you see a developer using git on a Mac laptop in a coffeeshop, you can intercept that and gain their repo and probably password hashes pretty easily.