Look at it this way, Qantas has a daily non-stop from Santiago to Sydney, 13h20m, 11,000km. Seemingly an impossible thing on the AE FE map. Perhaps 1000’s and 1000’s of people have taken this flight over time. If a non-local FEr wanted to take the flight to see if it’s real or not, time, effort and money would be involved. In the absence of seeing for oneself, a bunch of folks in the FE community still claim that the flight is faked, re-routed or perhaps doesn’t even exist.
Now extrapolate that to an extremely expensive, maybe even dangerous civilian space tourism program. No amount of video/still imagery or personal testimony from a space passenger would even remotely sway your average FEr.