While I think I agree with this article, that isn't the case here. That article is talking about taking C code that happens to be portable to an obscure archite

While I think I agree with this article, that isn't the case here. That article is talking about taking C code that happens to be portable to an obscure architecture, but never officially supported it, then complaining when the never-official support breaks for some reason. We're talking here about the Linux kernel, which (by necessity) was explicitly ported to every architecture it works on, so any lost architecture support would be an explicitly removed feature.