Your argument is bad, and you should feel, if not bad, then at least very silly. There is an HTML5 standard.
It was developed by browser makers with input from the community, published by WHATWG, and begrudgingly accepted by W3C in 2014. That's a fact. The HTML5 Recommendation exists.
That those people went on to continue to develop the standards further, as standards bodies are wont to do, and that they call their current work the "Living Standard" doesn't erase that fact, any more than the W3C's publication of the third edition of the PNG standard last summer means that earlier editions "don't exist".
Please point to any current edition of the HTML standard that is titled HTML5 published by WHATWG or the W3C. You can't. It's impossible. You can only point to past, out-of-date, no longer maintained publications. We're talking current standards. Not old ones.