That may be true in general but the React license has generated a lot of buzz. If you look at pretty much any Facebook project posted on HN, you'll find that one of the top comments is about the license. Also, the decision to use React is impactful enough that I'd expect most tech CTOs to know about it. I grant you that some might not take the license issue seriously enough to discuss it with legal counsel.
To answer your original question, I found this statement by Automattic's legal counsel[0]:
> “Automattic looked at the legal issues with Facebook’s patent license on React,” Sieminski said. “The termination provisions of the patent license aren’t ideal, but are not a blocker to using React as part of Calypso.”
To answer your original question, I found this statement by Automattic's legal counsel[0]:
> “Automattic looked at the legal issues with Facebook’s patent license on React,” Sieminski said. “The termination provisions of the patent license aren’t ideal, but are not a blocker to using React as part of Calypso.”
[0] https://wptavern.com/automattic-will-continue-to-use-react-j...