“Jet fuel is freaking *HARD* to get it to ignite. You can’t do it with sparks, and you can’t even light it with a blowtorch.”
Jet fuel is basically kerosene. Video of gas engine running on kerosene (spark ignition):
https://youtu.be/MTlNjRDOJ5E?feature=shared
Compression raises the temperature up probably 6-8 times, (I'd have to do some calculations with Charles' law to be sure) so inside a cylinder, the fuel temperature is probably around 600 degrees, the pressure is 6-8 times normal atmospheric pressure, *AND* the fuel has been atomized by the carburetor.
Are you suggesting the fuel pressure in that center fuel tank was raised by a factor of 8, and that something in that tank atomized the fuel?
https://youtu.be/MTlNjRDOJ5E?feature=shared
How about you watch this instead?