To me having a particularly heavy rocket to be man-rated is like stepping into Shuttle problems again. That is, trying to make a system both very safe and havin

To me having a particularly heavy rocket to be man-rated is like stepping into Shuttle problems again. That is, trying to make a system both very safe and having a large mass payloads. Why to have a larger than necessary rocket, which has additional problems with just getting stuff to orbit - FH is more complex than F9 - to carry humans, who requires extra care? Much better, from the point of safety, is to have a moderate-sized launcher human rated and specializing in bringing humans safely to orbit. After that it's much safer to use whatever means of travel are brought to space by any other launchers, those with focus on economy and less on safety. A counterargument is usually a variation of "it's very expensive", but that's just, roughly, because human life is valued cheap enough to allow for suboptimal choices.