If you're arguing against custom typography, I'd respond that creating a custom typeface is a really worthy thing and exciting to see, especially since they're

If you're arguing against custom typography, I'd respond that creating a custom typeface is a really worthy thing and exciting to see, especially since they're open sourcing it and sharing it with the world. But I think your main thrust here is that it comes off as Mozilla acting aimless? It's a fair point, and it makes me a bit sad to think that Fira Sans has completely gone off of their radar now.