[acdha]

a) They have a LOT of people on staff and the level of effort here isn't exactly rewriting the Linux kernel.

b) They're getting a lot of attention in the open data community, where the same features developers like are valued for tracking information as it's received, cleaned, and forwarded. Efforts like https://github.com/unitedstates are getting traction with some influential groups (non-profit, journalism, etc.) so I think we're going to see this as far less of a niche in the future.