I'm implying exactly what I just said before.
Google and Microsoft (and Dropbox at one point) are partners of Samsung, so Samsung got paid by them to feature their products preinstalled on their phones and push certain promotions with their phones(free 1TB of cloud storage for one year or something like that).
So it stands to reason that if Samsung were to offer crazy amount of NAND storage out of the box, then then their partners in the cloud business would not be very happy, now would they?
Not that it's the main reason why they're not incentivized to put lot of NAND by default, but these partnerships can't help either.
I'm just explaining putting 2+2 together here guys, as I though the implication was obvious to everyone.