It's entirely open source and pretty comprehensible. That being said, of course the dev could tear up years of work and go rogue at any moment, like any other solo open source project dev.

It's not my version of the script, it's what his auto-installer did to my zshrc, which I've retained.

And the purpose of a self-install in the zshrc is twofold: portability to new systems, ie when I moved from macOS to Arch, my zshrc could stay mostly the same, and package management stuff. You may not be familiar with zshell/zinit forks but one can also use them as general package managers (https://wiki.zshell.dev/ecosystem/packages/synopsis) and do pretty cool shim stuff as well (https://wiki.zshell.dev/ecosystem/annexes/bin-gem-node) (https://zdharma-continuum.github.io/zinit/wiki/Annexes/).

I don't think the genuine issues brought up (his new silly way of auto-installing zshell, etc) warrant the reaction this is getting (unixorn taking it off of awesome-zsh-plugins, etc).