You pay people for their labor. Most people view that favorably. The ones who don’t you probably don’t want to hire.
Requiring people to join your cult seems a bit much imho.
Idk, GP has maybe been… over-expressive about their opportunity, but it’s still good advice that showing an interest is going to make you stand out more. Saying “do you need code written because I can write code” says nothing.
I’m getting work done on my house and the guy who’s getting the work is the one who spent a bit more time looking at my house and assessing what needs done rather than a cursory glance. Isn’t it understandable that employers want at least some engagement?
To your point "in the interview...", I think hammers home the post's key point that the real process is the interview. Everything else is just to get you there.