I agree, but I guess the point I was trying to make is that I think everybody is susceptible to over-biasing toward thinking the thing they know how to do is super important, to the point that they sometimes over-do it, despite their best intentions.

I would say that "a good programmer doesn't write more software than is necessary", but despite my best intentions, I'm certain that I write more software than is necessary, because writing software is my hammer and lots of things look like nails to me.

I think it requires more than just being "good" at something to overcome this tendency. I'm sure the very best operational planners, like the very best software engineers, consistently strike the perfect balance, but I suspect most "good" planners, like most "good" (even "great") software engineers I know, still struggle with this tendency.