I don't know if there is a taste difference that's meaningful, but the consistency is probably the real difference between grinders.

With a spice mill, it's a total crap shoot if a grind will pull properly, blast through or block up completely. It is a challenge to always get a good grind.

A burr grinder? If it's the same beans, it is set and forget. Always the same grind, same pull, easy.

If there is any taste difference, I suspect it is down to consistency of the grind and not much else.