That's a very subjective take on what properly means in this context. Many would argue that serving the content is the main thing that matters to your users, an

That's a very subjective take on what properly means in this context. Many would argue that serving the content is the main thing that matters to your users, and if your font takes so long to load that you need to deal with it separately, it would be better to not do that to begin with. To put another way, as a fellow user of websites, I would much rather read what's written than look at a blank page while some marginally different version of Helvetica is fetched in the background.