It's not that level of open. You can't just do a pull request, not only because there's no infrastructure for it but because you also need to change the name. It becomes a different product.

> No Modified Version of the Font Software may use the Reserved Font Name

And if you are fine changing the name and releasing it as a separate font, you might as well just type "Ubuntu" and discover that this font already does what you want!

I really don't see the point of designing a font that is worse than what's already out there. What is Google trying to achieve here? Just another headline, giving something openly to the world, good brand publicity? Seems like an expensive way to do it so probably not, but then why