I would probably phrase it as, a developer un-crippling newer versions of Flash. It's still Adobe releasing them, but they're region-restricted to only run in China, and of course they have all the China-mandated spyware. Darktohka is stripping all that out so the rest of the world can use the updated (and presumably more secure, although who really knows) versions.
But it's still Adobe's copyrighted product, and legally, they have the right to say "no" to what darktohka is doing. You'd think they wouldn't care - if folks are that determined to keep using their free product, why not let them - but maybe they made an agreement with the other members of the "Anti-Flash" consortium (chiefly Google, I suspect) to do everything they can to keep this old, not particularly secure, but popular browser plug-in dead & buried outside of China.