Decompilation allows to fork, but scaling the fork and making it maintenable on a long time scale is a technical challenge.

The FSF succeeded at changing the mindset towards more collaboration.

I agree that this also allowed to divert efforts from research on reverse engineering tooling by reducing the needs.

But AI is game changer for reverse engineering, so no secrets will be hidden in binaries.

In a way, this is a merge of an alternate branch of history where RE would be more powerful.