Specifically, do you worry that Microsoft is going to eventually do the Microsoft thing and horribly fuck it up for everyone? I've really grown to appreciate the language itself, but I'm wary of it getting too ingrained at work only to have the rug pulled out from under us when it's become hard to back out.
Edit: not really "pulling the rug", but, you know, doing the Microsoft classic.
No, I'm glad that "now that wasm exists I can do web development in any language" isn't thing yet. The web would get even more clumsy than it already is. I'm glad that when I visit 5 links I don't have to download 10 different runtimes each time.
10 different runtimes? WASM what do you mean? It's byte-code for the browser. It's not like Flash or Java applets that required an external program to run.