Replace 'Alpha Centauri' with 'Heaven' from any religious narrative. See the problem with this? Intent matters. A sincere belief in a claim may be at cross-purposes with the data, may not be testable, may violate the laws of logic, but fraud it is not. Intent matters.
Fraudsters employ intentional deception to manipulate one or more subjects into a belief that benefits the fraudster's motives. This could be the faith healer, con man, 'psychic', quack doctor practicing some kind of sham medicine, or someone selling two tickets to paradise in the afterlife.
The person who sincerely believes in something false or unavailable to peer-review or independent verification is not a fraudster—even if they're factually wrong. Their intent may be good and even altruistic from their sincere perspective. The fraudster knows they're defrauding people. The sincere believer is not the same as the 'faith healer' who uses myriad parlor tricks to fool audiences into believing their 'miracles' for an obvious profit motive. One may share their sincere belief (not fraud) but the other is committing knowing deception for personal gain...fraud.
Of course, this is a far cry from FSD, which is the named 'goal' of an iterative technological convergent evolution which will inevitably lead to FSD at some point in the future—but it will happen. Safe and reasonable self-driving is possible now in most conditions barring edge cases, but without fixing those edge cases Tesla cannot really release FSD, nor would it be safe without quick and decisive intervention where necessary. This is why beta-testing is so important. We are simply at a point in this evolution where FSD is not yet fully-realized...like the early days of rocketry before rockets were somewhat reliable enough to trust with precious human cargo. Edison tried rat hair as a light bulb filament, supposedly, long before he got to copper wire.
In other words, iterative evidence-based technology cannot be compared to fraud simply because it's not fully-realized at the moment.
That said, I think fraud requires knowing deception and an intent to defraud.