All this is for extraordinarily simple decisions. Real world problems often are a lot more complex requiring highly structured outputs covering many output attributes and substructures, for which a conventional structured output via a documented schema is better. If instead you make twenty independent calls to a decisions API, you lose coherence among your twenty decisions. I think any hype surrounding decisions will be forgotten soon enough.

I don’t think so. People want more determinism and this is just another step in that direction.