What does it really matter where someone gets their licence, purely because that is all it is, getting a licence.
I disagree to some extent.
I have flowen with persons of many thousands of hours whom i was left wondering if they had obtained there last BFR off the back of a cereal box with $2.95 P&P, while some freash CPL students have blowen me away with accuracy and superb attitude.
I think a persons first instructor and would even go as far as to say first couple of lessons affect the way they fly and there attitude towards aviaition for a very long time.
Yes a persons own self disipline may overcome crap instruction in the future if they are lucky enought to pick up on the fact they have been tought crap, but i have an inherrant distrust in the human race and therefore tend to think that this seldom happens.