> no component standardization

This one is interesting because Alan Kay is so expressly against it ("browsers shouldn't have features"). He thinks every object should just render itself as a bitmap.

Besides, browsers do have standard components. That's what the semantic HTML tags like <button /> are. The specific views vary between browsers. Is that a problem? Regardless, almost no site uses the standard stylings that do exist. They use a de facto standard like Bootstrap, or they build their own.

I agree with some of your other points, but I don't understand your lament of "enormous complexity" while you're advocating for more features.