That's a very odd thing for the report to say. I'd stick my neck out and say that a check categorically would've alerted the pilots to the restriction.
I agree so they must have their reasons.
I fail to see how it could have been missed. The control column is well back from its normal position and whether or not a "full and free" was carried out, surely anyone familiar with any model of C130 should notice the CC position long before getting airborne - whether or not they could see the case whilst wearing goggles.
Again I agree.
Do you think they would have been as coy if they had a flight deck survivor?