Nvidia's CEO likes making money.
His issue isn't with blower cards, it was with market segmentation and wanting to charge more for cards that were used in a professional setup, while Nvidia benefits from a shared platform and consumer buying plenty of GPUs.
So GPUs were made so wide, no one could fit more than a single one into a commodity mainboard, while blower variants might accomodate two or four.
Now that datacenter GPUs cannot be shipped to China and perhaps more professional GPUs have RAM sourcing issues, he might have "consumer" chips piling up or he might simply want to avoid AMD or Intel grabbing market shares via customers desperate enough to fulfull their "professional" AI needs even with product from the competition. Or twenty other reasons.
In a global war for world domination battles and skirmishes still shift and a personal dislike against blowers was just a far too simplistic view by some writers, a mistake that hopefully won't get repeated.