eyeinthesky
Yeah, have to agree with you. I, too, have always wondered why a pilot cannot feather a prop on a SE aircraft.
When I first did by CSU/Retractable endorsement on a SE aircraft, the instructor indicated that, if I was sure I was unable to restart the engine, I should pull the prop lever right back to coarse pitch to minimise the drag from the windmilling prop.
However, this technique is never mentioned in the emergency procedures within the POHs for the VP aircraft that I fly and I have never figured out why.