But people continue to die disproportionately to using the V-22 than the helicopters it was meant to replace.
I think you're wrong. Maybe I'm wrong. I thought the facts were on the contrary. I thought the crash and casualty rates amongst helicopters was much higher than the V-22.
I don't think though the V-22 was really meant to replace any particular aircraft. Perhaps our difference of opinion is that you are assuming that the V-22 is supposed to replace the C-130. I think the V-22 fills a niche that no other aircraft has been capable of filling. I think the V-22 fills a niche between the C-130 and helicopters.
Article from FlightGlobal.com here
The rotors on the artist conceptions of the fixed wing aircraft are too large to do a conventional landing; which I think could be a disadvantage because it commits the aircraft to being a vertical takeoff and landing aircraft; I think this also tends to reduce payload capacity and safety. Though I'd imagine in an emergency you could probably sacrifice the rotor blades and do a conventional landing; however the rotor blades under such circumstances could be a threat to the occupants.