The only moral issues that need to be discussed here are the ones around this FTO. This accident has been waiting to happen for a considerable length of time. Lord knows how it hasn't happened sooner.
Both myself and long final have been privy to some stupid antics by this FTO. If you do not know this outfit its Very Difficult to properly assess how this accident came to be.
Ironically I personally feel that there is no way that this lad would have set off from Exeter without gassing up, he must have been dissuaded by the "more experienced" other chap.
The only thing Andrew is guilty of is picking the cheapest flying school on the field without checking the reputation of the people involved.
As I say to my boss when its time to pay for the sim training - cheap training can be very expensive.....