I don't think it's fair to make Google particularly responsible for WHATWG and the over complicated web. The other vendors were on board and used the sentiment

I don't think it's fair to make Google particularly responsible for WHATWG and the over complicated web. The other vendors were on board and used the sentiment against XHTML from those who directly did write-once HTML, right before the web out grew their manual skill level and became capable of offering tooling. The results have naturally been a hodge-podge since WHATWG was about using the sentiments of everyone against a standard, and the results are everything in every direction except the track the W3C standard was on.