Most of these just amount to "some parsers are bad", which.. I mean sure? But xml's surface area for parsers to be 'bad' is so much greater, and its gotchas are thus much more subtle. I hope you're not trying to suggest that all xml parsers are identical and perfect.

Your assertion was that json's edge cases are "as bad or a little worse" but imo this document doesn't suggest that at all. Every single thing listed in it can go more wrong with xml, not less.