That's assuming the model is actually as good as they say it is. Given the amount of AI researchers over the past 3 years claiming supernatural capability from the LLM they have built, my bayesian skepticism is through the roof.
don't confuse bayesian skepticism with plain old contrarian bias. a true bayesian updates their priors, I'd say this is an appropriate time to do so. also don't confuse what they sell with what they have internally.
They were right, it's hit 100% at a number of large tech companies. (They missed their initial prediction of 90% 6 months ago, because the models then available publicly weren't capable enough.)
The transition is pretty complete at e.g. Google and Meta, IIUC. Definitely whoever builds the AI tools you're using every day isn't writing code by hand.