I agree that they probably weren't envisioned to use a power nozzle when they were introduced. However, if the spinning brush can sweep pet hair from a rug, it would make the cleaner a lot more useful. I remember wishing the 3hp Eureka Might Mite from the 80s, which had a lot of suction, had a power nozzle. It had standard paper bags of that era, lost airflow rapidly and significantly, so the turbine brush Eureka sold to use with it didn't do too much within minutes, which is the typical downfall of turbo nozzles. So, I don't expect that little machine in Phil's OP to be an awesome deep cleaner, but the power nozzle probably helps quite a bit in a lot of circumstances. I'd love to see that someday!