The apparently controversial part of the React license simply says that if you sue Facebook for anything patent-related, your license to the patents underlying React is automatically revoked.
Otherwise, it's just BSD.
Otherwise, it's just BSD.
Additionally they added a patent grant as long as you don't sue them for patent infringement. They could have simply remained silent on the issue and it would be worse for developers. A patent grant is only a positive thing.
IANAL Hypothetically, there _may_ be good reasons to sue Facebook over patents unrelated to React, especially if they happen to break a patent you or your company owns.
However, that would mean loosing access to React if I happen to develop applications that use that.
Wouldn't such a blanket statement skew the power balance excessively in Facebook's favor?
If Congress is unable or unwilling to act then why not take it upon ourselves to include these types of clauses in even more licenses?