It goes beyond that and doesn’t need game simulation (although it’s a great teaching tool).
#SteveKeen has modeled macro from accounting identities which follow closely empirical economic behavior and has debunked mainstreamers for 50 years (as others have).
The mainstream’s refusal has as much to do with an the established thinkers refusing to budge as it does the immense ideological interests of wealth that uses them to legitimize their dominance.