I wouldn’t consider running something like that without eye protection, if not a full face shield. I’m sure the intention is to never point it at yourself while using it, but it could well be something that gets stuck inside until it thaws enough to let go. If you’re testing/adjusting and walk in front of the chute at the right time (wrong place) …….Very true. It is dangerous. But I'm not planning on ever shooting snow in my face . I'm gonna stop rotating before it happens. FWIW, I'm wearing eye protection because you still get lots of snow in your face even when facing the opposite side.
As for the electric motor, the reason I dont like it is not a matter of torque. It's simply the fact that it's electric. Electric wires and motors don't like salty snow. In my last build, the wires got comoletely corroded. Making the whole thing water resistant and using quality parts would end up costing about the same as going hydraulic. Plus, hydraulics is fun.
The same thing can happen with a chipper. I’m well aware. But you did ask if anyone thought any part of it was “stupid “. Stupid, no, dangerous, very much so.
The machining looks good, just be diligent about where it’s pointed. Don’t become a statistic. I take it you’re gonna use your 3FV to run the motor.
Good luck with it and be safe!