I got an offer from MSR a while back. I remember asking, "so... how do you guys ship?" and they actually thought this was funny, laughing and laughing. "That's so cute!"
It's also a non-goal. I used to work there. It was hard to see stuff ship since researchers seemed incentivized on some value of 'prominence' (research community and MS-internal).
Even in the cases where they productize it - the Program Manager on the product team is not going to get a bonus by taking on some new project in MSR in addition to the commitments filed last year.
So researchers get on just fine without slaying dragons to ship. More cool papers to publish anyway.
Because for them, it was an impossibility.