With respect, it doesn't actually matter too much, whether he held an ATPL/FATPL/CPL . . . Hell, even a PPL.
What assuredly mattered, was that, when handed the aircraft by the autopilot, following the instrument "wobblies," to handfly, he A- zoom climbed several FL's above the cleared one B - stalled C - failed to recognise he had & therefore D - failed to initiate any recovery action,& indeed continued with quite contrary control inputs.
Having read the other thread, a long way back, about instrument failure/false overspeed indications & uncommanded climb by the "wonder-plane", to counter this , perhaps uncharitable summary, & being something of a "Frog/Airbus conspiracy believer", I am willing to be disproved (indeed more willing than most)
In the absence of that, I have to say his performance was below that expected of a PPL student,never mind a PPL, so (the variety of) his licence? "frankly my dear, I don't give a damn"