This sort of license is definitely open source (and common, in fact), it's just not gpl2 compatible, which is the current reason most licenses avoid it Basical

This sort of license is definitely open source (and common, in fact), it's just not gpl2 compatible, which is the current reason most licenses avoid it Basically: Any attempt to terminate both copyright and patent rights will be gplv2 incompatible Attempts to terminate patent rights, written in the right way, will be compatible.