I think the key thing to keep in mind is that the end user really, really, and I cannot emphasize this enough, absolutely and totally does not care about how mu

I think the key thing to keep in mind is that the end user really, really, and I cannot emphasize this enough, absolutely and totally does not care about how much effort something was for a developer. This guide is from a UX person, they are looking at things from a usability perspective. Developer effort is not a consideration here, and rightfully so.