What is the point of having a minimum educational standard when it is so easily bypassed because of a family name?. Simples really.
Obviously 2 simple for you TT. In your own post you quote that Prince Harry got 8 GCSEs (or in your day 'O'- levels) so he met the old minimum requirement of 5 'O'-levels. Simple really.
Minimum education requirement to join the British Army as an officer:
35 ALIS points (34 for SCEs) from 7 GCSE/SCE subjects, with a minimum grade C/2 in English language, maths and either a science or a foreign language; plus 240 UCAS Tariff points from at least two A level passes grades A-E or SCE Higher grades A-D.