My personal experience matches this. When I'm "succeeding", I am at the 5-to-7 minute cycle time and when I (or Claude) are failing, there's constant attention and no ability to switch away.

My human programming experience is encouraging me to keep going on the debugging, like I did when it was my code that I invested a lot of time and energy into.

Now that the code is cheap, I am trying to "learn" to throw away everything, go back to a stable checkpoint, and try a different approach that is more likely to succeed. (Probably having the new plan incorporate the insights I gained the first round.)

It is hard to do that when you coded for a week (or even a weekend) but it should be much easier when you got it faster with Claude. I think people (me at least) need to learn new norms.