> I might be pushing an already over-touted product

Yes.

> the Flow Hive seems to simplify much of the harvesting

Probably true if you have just a few hives.

> I understand some purists are against the notion of "factory honey" but I imagine these style of hives will dominate the market in years to come.

Never heard "factory honey" as an argument against the flow hive. There's lots of bad arguments out there against the flow hive, but there's one really good one: it's super-expensive. I'm still waiting on more real-world info to judge, but I'm pretty skeptical that the mechanism can hold up after multiple seasons of bee-abuse.