I think some of the power user demand is fairly inelastic. I’ve seen developers who are allergic to spending money happily drop $200/mo on those new Claude subscriptions.
I don't have difficulty getting to a 20% productivity gain with AI just from automating the tasks I procrastinate on or can't focus on. Likewise the ability to code a prototype overnight/over the weekend is a reasonable extension of practical working hours.
The challenge I do see is that fully AI generated code bases devolve into slop pretty fast. The productivity cutoffs are much lower compared to human engineers.