Si Clik,
Your problem understanding the flying training difficulties of others may be caused by (if I guess your identity correctly) the fact that according to an old instructor of yours you were a flying god. Us mere mortals however do face dificulties at certain points in the pipeline. These may only be at the apptitude stage due to that fallibility of the testing proceedure.
I do not suggest we lower training standards in any way, but to limit the entry to training unnecessarily shoots ourselves in the foot. Perhaps it would be worth accepting a higher wastage % in order to get more people out the end of the sausage machine.
Especially at a time when when we are so strapped that baby observers are all being given pilot grading on the offchance that they pass it, and chopped observers get another go!