It's not, but it's the basis of ad-driven, surveillance-ware, and user engagement optimized companies that drive the ludicrously high profits and wages in the US tech sector.
Do you see US tech workers lining up to work for Canonical? Yeah, I thought so too.
Hiring in tech is broken regardless, so most candidates optimize for compensation as that way at least the end result justifies the effort of going through those several stages of various hazing rituals each company has lined up.
And like the Canonical employee said in that thread, they receive 80% quality applications despite all of those shitty hoops Canonical makes you jump through even before they talk to you. So yeah, there seems to be no shortage of devs regardless of how bad a company's hiring practices are, as long as they're an established name and/or pay great.
Look at where we are communicating here. On a US website built by a single person.