The pilot, was carrying out a touch and go, specifically against instruction
This is not at all an attack on OBA (pletty of other US clubs have the no solo touch and go rule) but I do find it rather tiresome and unnecessary that the rule exists. Plenty of clubs in the UK allow solo touch and goes, on 700m grass strips as well, there is nothing dangerous about doing them if your take offs and landings are OK. All it means is that less of your hours are spent in the air and you waste hobs time taxiing around and waiting in take-off queues. If a student can't handle a touch and go then maybe they shouldn't be going solo.