Hmm, interesting. So if VSA credit counts as equivalent to Starfleet Academy training, that raises questions about why Spock felt he had to choose Starfleet instead of the VSA. Maybe it was more about making a break from his father's ambitions and influence.
I think ST09's scene makes Spock's reasons for declining admission to the Vulcan Science Academy pretty clear: their bigotry against his human heritage. There's no reason to think that event played out any differently in the Kelvin Timeline compared to the Prime Timeline.