Hawking knows that General Relativity fails
at the exterme of black holes. But he didn't
go far enough. He criticized the failure at
the singualrity but forgot the failure at
the event horizon.

The failure is that GR predicts the emission
of energyless light at the event horizon.
Energyless light?
Light of infinite wavelength?
Infinitly redshifted light emitted?
Boloney.

If you don't believe it look up Einstein shift.
So you can see you are wrong.