Because slow startup time is obnoxious for any command-line script. There's no reason to start up an entire scripting virtual machine just to make an HTTP request. No one should be writing serious CLI tools in an interpreted language.
And yet for decades serious CLI tools are being written in POSIX shell, Bash, Zsh, Awk, Tcl, Perl, Ruby, Python, and no one really complained about speed until now, when hardware is so fast, finally people are starting to notice slow startup times??? C'mon. Python is not Java.
I can definitely tell a difference, and it's irritating. The authors of these tools might not notice or care but I actively avoid them. Magic wormhole is one such example.
