Hu?

You can write JSX with just script embed.

What kind of webapp are you writing where adding a compilation step adds too much complexity? I get if you're writing an application that's 95% static with a few moving pieces, but otherwise that argument doesn't hold much weight for me.

This actually scares me because I have extensive experience in knockoutjs. It also used a reactive system. The problem was once the UI became sufficiently complicated performance would suffer greatly. If you had a lot of computed properties changing a piece of data could result in a lot of UI thrashing as each of these are recomputed. I'm not sure how Vue solves this problem, or even if it does but overall the architecture was inadequate.