New reliable figure signalizes that psv is hugely overtracked! The error wouldn't be so big, if the huge adjusting up (due to a misapprehension) back in April had been avoided!PSV/PSP figures inside!

[Kresnik]

So, the guy who originally made this thread on GAF contacted CESA and got an update:

http://www.neogaf.com/forum/showpost.php?p=184649300&postcount=88

Got a clarification on Vita LTD from CESA:
"The figures for PlayStation vita (PlaystationTV included) were estimated by CESA".

Vita LTD in 2015 CESA Games White Paper were an estimate by CESA, NOT shipment data by Sony.
Please disregard what I said.

And just for double proof, it seems this is the same guy that was your source in the OP:

Vita LTD in 2015 CESA Games White Paper were an estimate by CESA. NOT shipment data by Sony.
Please disregard what I said.

— Dosunceste (@Dosunceste) November 8, 2015

Back to the drawing board, then :P