Esperanza,
I've flown with umpty gazillion graduates of the school that this chap attended. With regards to these students I can safely say that from my own experience none of them had achieved the same level of competency that they would have had they learnt at a half decent UK school/club.
I take it that you intend reporting the shortcomings of these 'umpty gazillion' to the CAA then?
If you care to wander through some of my aviation related offerings you will see quite clearly where I learned to fly, where I fly from now, and where I've flown from in the past.
Tell you what, I notice on one of your threads that you instruct in the 'North' I know that can be a big area but how about I come and meet you and we can fly together, and then you can pass on your professional opinion face to face?