Isn't dynamic dispatch a separate problem? It's great that gcc solves dynamic dispatch, but this article was about the problem of functions that are not suppose

Isn't dynamic dispatch a separate problem? It's great that gcc solves dynamic dispatch, but this article was about the problem of functions that are not supposed to be dynamically dispatched, but are called from dynamically dispatched functions - the noninlined inline function problem. gcc "solves" this problem for its own inline functions by tagging them as static. But what about template functions? And what about functions defined by developers. I don't think gcc claims to solve those.