I don't think anyone should be accusing OAT of shoddy maintenance, its just not true. Oxford have one of the best maintenance facilities in the south of England.
Their aircraft may have had different usage than those at other schools. Oxford's students, for instance, used to be allowed to fly the twins solo. I understand that all of OAT's Senecas with more than 6000hrs had cracks in the spar. BFC's highest time aircraft has 16,000hrs but no cracks, but then BFC's students don't fly the Seneca solo and as a consequence the aircraft don't get whacked into the concrete either so hard or so frequently.
I'm no apologist for the APP course but you should give credit where credit is due and not tar all of OAT with the same brush just 'cause you think their marketing policy might be dodgy.