I am not aware of Eric saying something about that alternative, but this comment on reddit[1] makes a lot of sense to me:

> Given that part 2 is often a very simple modification of part 1, this could lead to many of the days being total letdowns. I can enjoy a simple puzzle, but I'd be a bit disappointed if one day is a single line change to the previous day.

I'd also add that not having to be worried everyday about something makes a lot of sense. He can have fewer days "on call" in December with.

[1]https://www.reddit.com/r/adventofcode/comments/1ocwh04/chang...