Nowhere did anybody say “moving house for any reason is bad”. Buffet could’ve moved if he wanted to, I presume. So, evidently, he didn’t have any of those ‘other reasons’. What we *can^ say is that he didn’t move, which shows that he didn’t allow lifestyle inflation to extend to his place of residence.
No they said we can all learn from it. I understood the implication, I just reject the stated idea that that lesson is to “live in one house for your entire adult life”.