the choice of the policy is directly related to and inspired by Servo's; both the current "no" policy, and the proposed "yes if de minimis" policy. I was aware of the proposal for quite a while before it became widespread knowledge recently and was intently waiting to see how it works out for them
as best as I can tell, the only strong view in favor of "yes" is by an outsider without contributions, Sid Askary, who claims it might hurt funding (!)
that's no way to run an open source project.