It is a vastly superior model for complex, real-world coding tasks. I've constantly had Opus 5 hit road blocks where it spins in circles at xhigh, where switching to Fable immediately solves it. I've had Opus create solutions that Fable then points out the gaps and limitations with, and have never seen the opposite happen.

The fantasy that Opus is superior for coding, much less the incredibly weird clutching onto some far obsolete model, is not reality based.