Powershell has a security model. Also, Ryan Dahl (creator of node.js) is working on Deno as a replacement because he thinks he made a mistake with node.
Ryan is one person and not involved with node anymore. Deno also has many mistakes IMO, so fine to agree to disagree on this one.
Interesting. You think he is making mistakes again? He complains about "second system syndrome." I've been using Deno for hobby projects and find a lot to like about it.
There's a bit more to it than that. The article touches on the fact that whats on npm doesn't have to match with what's on github (which is true for any package system that isn't 100% backed by source control).