I'm the author of that presentation, and I'm surprised to see the very similar content and structure, to say the least. I left a comment on the Reddit thread[0] to see if I'm missing something.
Thanks -- I replied in full there. I reused your title, which I can see was confusing. However, this is all my own writing and research, primarily from the official (draft) release notes, new linker design doc, golang-dev, and GitHub issues. But your slides were a minor source, so I still should have attributed them. That would have helped you and not hurt anyone -- sorry!