> The Gatekeeper behavior is specific to running things from Finder (not Terminal), and only if you downloaded it via a browser that sets the com.apple.quarantine xattr.

The article says the described problem isn't limited in this way:

> This is not just for files downloaded from the internet, nor is it only when you launch them via Finder, this is everything. So even if you write a one line shell script and run it in a terminal, you will get a delay!