is student No2 a liabilty to the safety of the aircraft ?
Of course he is, or would be, at the moment.
There are those people who can take these things in their stride first time round; there are those who will never master it no matter how long they try; and there are those who will, eventually.
If he is one of the last group, then it is possible he will eventually make a good team member. It depends, among other things of course, on how long and how much money the Force is prepared to spend teaching him. That is what the selection process is all about.