That's a bold statement. Also I feel like he's missing a few cons for Python:
* The 2/3 mess (yes it is still a thing)
* The insane packaging situation. Packaging a Python app is a nightmare.
* Dynamically typed
And some extra cons for Javascript:
* The insane prototype system
* Basic things are broken and have never been fixed: ===, type coercion, still no 64-bit integers as far as I know.
* Dynamically typed
> Assembly: Too low-level. V verbose. Kinda confusing. I choose Python.
Lol when would your two options ever be assembly or Python??
Not a bad list though.