That is for a very specific class of usecases. If they would turn up the sycophancy on the new model, those people would not call for the old onee.

The reasoning here is off. It is like saying new game development is nearly over as some people keep playing old games.

My feeling: we've yet barely scrarched the surface on the milage we can get out of even today's frontier models, but we are just at the beginning of a huge runway for improved models and architectures. Watch this space.