Very interesting move. I wish them well!

That's what happens where references are half hidden in a language. You think each closure get a different copy but in fact they all refer to the same object.

This is a funny pretense, and yet... If any of this remind you of a real context, this would be paper cuts. Have enough of those and indeed the organization might grind to a halt.

This is indeed a real concern... with no propre solution in sight.