Totally agree. However, I suspect that individuals are more likely to tolerate delays in hardware acquisition, and also more likely to stick with an RPi due to

Totally agree. However, I suspect that individuals are more likely to tolerate delays in hardware acquisition, and also more likely to stick with an RPi due to the ecosystem offering vastly greater levels of support and existing solutions. (When I struggled to lay my hands on a Pi Zero a while back, I looked for other options, but found various negatives for the potential alternatives.)