I’d argue using AI to provide that input is no longer a creative work and puts the output in the realm of being not transformative. Those are two of the main reasons these projects are not violating copyright and all of the legal risk that comes with decompiling.
It's currently legally grey as to what ai output constitutes.
I'd argue that copyright should not be affected by the tools being used. If the project would've been compliant with copyright (ala, fair use) had it used human hands, then using an ai tool makes zero difference.
