Earlier quoted context omitted.
Disregarding the fact that Bryan operates oxide a company that has multiple investors and customers (id say this proves valuable knowledge) the crazier fact is that people think html is useless knowledge. React USES html. Understanding html is core to understanding react. React does not in anyway devalue html in the same way that driving automatic devalues driving manual
Go to Facebook.com and right click view source and tell me html is not being devalued. No person who wants to write aesthetic html would write that stuff.
Whatever blob of HTML the browser is offered is just the end result of multiple "compilation" steps. Nobody has spent a single iota of time thinking about whether it's pretty.
Just like opening any binary produces inelegant assembler.