One eye-witness says they were doing aeros (but is probably not particularly experienced in aviation as he's aged 19) and the disapproving decide the pilot is at fault.
The report actually says "Eyewitness Ben Nichols, aged 19, described the moment the engine of the plane sounded like it “cut out” while performing a loop.
He said: “We saw it go up and it looked like it was climbing. It just looked like it cut out and it came down and it crashed into the next field and it has been smashed up a bit. It made a bit of a thump.
It looked like it went to do a loop and it sounded like the engine cut out. It looks like they had to cut the cockpit to get them out."