Allow me.
CWT is the acronym for CENTER WING TANK.
The official finding was that the CWT exploded due to ignition of the leftover fuel by some point source. (so this isn't exactly a lie, if you consider the point source may have been ROCKET).
As far as reason to reject the official findings, here is one. If this had been true, the FAA would have grounded every boeing aircraft of that make/model. They didn't.
Notice that you didn't hear the Airline Pilots' Union go completely bonkers demanding that all similar aircraft be grounded and a design change made to stop such alleged center fuel tank explosions.
Had there been an actual *mechanical* safety issue with either design or maintenance, pilots would have refused to fly those birds. Professional Airline pilots do *not* work on flying bombs.
But the pilots knew better. Fuel tanks don't just self-detonate. Heck, NBC camera crews had to mount explosives on a *pick up* to get its gas tank to explode!