You seem eager to pose this “if the product was undamaged” as if you can quantify what might have happened differently, but then in a comment below you ask someone else to prove that maintainers left.

It might shock you to learn that products are developed by people. Actual people stay or leave and work wildly differently based on things like respect, expectations, and being in a hostile environment.

Want proof of that? Go work on an actual project with a team sometime.

edit - And this isn’t even accounting for the ways toxic communication impedes wider adoption of a product