Wasn't sure where to address this so I'll address it here. Read this recently:
Considering that the SilverStripe 4.0 CMS module is largely driven by React, I'm wondering how much of an issue this is. Will the patent clause put it at risk? If so, perhaps maybe the SilverStripe team should consider switching to Vue.js which, in my opinion, is likely to be a better library in the long run anyways.