I switched from Python to JS for backend stuff a while back, thoroughly enjoying it. I agree that "Python installation and package management is broken," but the async stuff was the biggest improvement to productivity. Yes I know Python got asyncio, but there's a big difference between having one well-accepted way of doing things vs multiple competing, incompatible ways, where the good one has the least momentum.

The rest is small stuff that adds up like Py whitespace scoping, or Py imports somehow not taking relative paths, or JS object syntax is nicer: https://news.ycombinator.com/item?id=44544029