Comment by daemonologist a day ago
The advantage of micropython is that you don't have to deal with all the poorly maintained toolchains and UART and flashing and whatnot; for a novice working on their own, that stuff is a nearly insurmountable barrier. That the syntax is Python doesn't make a whole lot of difference.
I agree though, probably shouldn't be the first choice for a professional application.
MicroPython's a bytecode interpreter so, other than the existing Python ecosystem being a huge boon (popularity being a form of strength), you could get many of the same benefits and more from wasm
If we forget about the pain that most WASM toolchains happen to be.
MicroPython, like most BASIC interpreters in 8 bit days, also allows for inline Assembly.
As for running bytecode on MCU that is as old as MCU themselves, wasm doesn't bring anything to table.
It's actually a great first choice for a professional application, in that you can get a prototype up and running much faster than a native SDK, iterate quickly, and try things out on a repl. In fact, it's used in industrial settings, including in medical devices and energy distribution.