I was tangentially involved in the Nexo II launch. Alexandru Csete (author of Gqrx) used my GNU Radio DVB-S2 transmitter code to send live HD video from the rocket.
I had doubt on manned amateur launch too, it is quite likely that the safety requirement would not be as strict as NASA due to funding issue.
Nevertheless, space flight requires bravery, some people might be willing to risk their life on the rockets, cant blame them, space is too much to explore.
My impression from afar is that they are far from strapping themselves inside a rocket, no matter what, like that flat earth guy. The manned part seems to be more like an aspirational goal than a fixture that will push all compromise elsewhere.
Surely people used to convey similar objections about sailing uncharted waters. Exploration is by nature a dangerous gig, everyone involved is completely aware of the risks they are taking.
https://www.youtube.com/watch?v=uwSYv8eVQqQ
https://www.youtube.com/watch?v=WYF8Am-lt20
https://www.youtube.com/watch?v=uqwJu6cSBW4