I'd imagine that just because they've decided it's good enough to go public with it, doesn't mean it's done getting better. Or that someone else can't do it better, now that it's been shown to work.
It's not a prototype. The Grid has been running for customers for five years. It already builds tens of millions of dollars of electronics a year. Across CircuitHub we've shipped more than 2.2 million boards, placed more than 150 million parts and served more than 26,000 engineers.
I'd imagine that just because they've decided it's good enough to go public with it, doesn't mean it's done getting better. Or that someone else can't do it better, now that it's been shown to work.