They aren't self-entitled if the project has any sense of community and has accepted external contributions of code/documentation/etc. Lots of external hours go into projects like this and moves like these are myopic and generally a big 'screw-you' to active external contributors.
External contributors are usually not the problem, since they're intimately familiar with the project and know just how much time and effort the core team invests in it to keep it running. Contributors that have had a positive impact are usually given free commercial licenses, thanking them for their efforts.
The 'screw you contributors' is a common argument used by self-entitled users to try and shame core maintainers into continuing to devote all their future efforts, giving away all their future time and IP away for free - just so they can continue their unfettered use of everything they make, and for them to continue to provide support, so that end-user commercial products can continue to benefit from all their future efforts, uncompensated.
