I’ll also make the observation that the extra time spent is very valuable if your objective solely is learning, but often the Business™ needs require something working ASAP

It's not that friction is always good for learning either though. If you ever prepared course materials, you know that it's important to reduce friction in the irrelevant parts, so that students don't get distracted and demotivated and time and energy is spent on what they need to learn.

So in principle Gen AI could accelerate learning with deliberate use, but it's hard for the instructor to guide that, especially for less motivated students