I agree with you, but there's probably already been some pressure with people wanting to use Raspberry PIs/other ARM-based boards for K8s clusters. I wonder where that tipping point will come.
Most of the Raspberry Pi trials I see end in lots of $100/hr developer time spent waiting for a $10 device to finish being slow. Or, worse, inflicting that experience on customers at a demo booth. It's not an attractive look. A high quality ARM desktop experience could change that.