all comes down to the bottom rocker - for a power drift boat to be effective, the bottom rocker needs to be straightened through the middle of the hull to create more of a planning surface, and that bottom rocker is what makes a drift boat safely 'bob' it's way through steeper runs without crashing nose first into the water ahead, as well as change direction with tugs on the oars, pivoting off the apex curve of that bottom rocker - which in power drifters has been straightened out.
My 84' Power Drifter was a barge to row. I fished several times on a new Clackacraft power drifter when I was considering ordering one, and whereas it planed better than my older one due to having an even straighter rocker profile, it rowed worse.
So the sweet spot for power drifters are rivers with moderate current that don't feature the whitewater waves and holes that make drifting downstream in a true drift boat so damn fun.