There are probably many reasons for this, but here’s my take: the GA community is largely self-policing. There are dozens of regs one could break — whether it’s 8 hours bottle to throttle or busting VFR cloud mins — however the pilot community adheres to them almost religiously. To have someone so blatantly and publicly violate regs with a complete disregard for safety and property would be setting a terrible precedent for the FAA.
Additionally, this is in the best interests of the GA community as a whole, given that it always has been and will continue to be under scrutiny from the general public. No one wants there to be the perception that among them there is a 100LL cowboy who’s gonna bust through a bravo, slam a red bull, and ditch their plane over a neighborhood.
The hammer needs to come down, and it needs to come down hard.