A good piece, though personally I think the Percival one last week had a slightly wider sweep (http://www.danze.co.uk/dcforum/happening/1899.html)
Re the RBS I'm on the very edge of my understanding, indeed probably gone over, but I'll put down a brief thought or two which will hopefully coax out more rounded (and correct?!) views.
The RBS created by de Valois had its own pretty unique training - a mishmash of things she had picked up and welded together. It gave RB/SWRB young dancers that fitted in and ultimately helped give the companies a unique style, and one which was dearly loved.
As I understand it Park has made the training much more mainstream on the basis that ballet is now more international and ultimately they are creating dancers for not just RB/BRB. Of itself this does not seem an outrageous thing to do - why create a special product when only a proportion get jobs in those companies? In any event RB and BRB have changed and take in more dancers from 'outside'.
The problem seems to be that a schooling that seemed to work - at least in some dimensions - has been replaced by something which appears to have struggled in the implementation. The result seems to have shown up as less winning in international competitions and fewer stars being developed (in this I don't count those who might do a final year in the upper school). The RAD Adeline Genee competitions have regularly been dominated by non UK entrants and in that its possible to see why the school is now run by somebody from 'outside'.