Indeed it's a decision that feels like it was made in a tonedeaf echo chamber. As a rule of thumb, if it is allowed on GitHub then coders are probably okay with that, and individual companies will have to use the dmca process.

This goes beyond that, taking the stance that by merely conforming your api to work with a user-provided proprietary checkpoint, you're in the wrong? This same philosophy forbids sharing open source game emulators, and we all know how that turned out (can be the best way to play a game).