I see there was a kind of nod there to emulation. Final Fantasy VII and VIII have PC versions, but IX doesn't. Nor does X, but it does require a moderately powerful PC to run the games via emulator. Mostly, a decent CPU. Pretty much any computer worthy of running Final Fantasy XIV would be good for Final Fantasy X. Final Fantasy X-2 is actually a little more demanding than Final Fantasy XIV on PCSX2 for flawless gameplay, though.
He also stressed that Square Enix games are a multiple system franchise. And yet, the remakes are only coming to Sony system. The Wii U may not be a popular system, but the 3DS is. What is stopping them from releasing the game on on the 3DS or Wii U? The Wii U is at least more popular than the PS Vita.
I would really like it if Square Enix would release these games for Nintendo system and the PC. With emulators, the games would be demanding. But even in HD, I think that even some modern, low end laptops wouldn't have a problem loading the game in max settings. In fact, the options of the PC make a lot of the point of an HD remake unnecessary outside of assets. You can play the game at low or high settings.
And the if the PlayStation 3 can run the HD version of this game just fine, there's no reason the Wii U wouldn't be able to. And I know that the 3DS is weaker than the Vita, but it should at least have no problems running the game. The 3DS had no problems running Tales of the Abyss, which pushed the hardware of the PlayStation 2.
I don't understand their exclusivity to Sony hardware for this game. Logically, it should seem like, as they're doing more than just a port, that the best use of assets would be to put them on multiple systems.
Maybe... just maybe... did you consider that Sony might have been the ones to push Square into doing these remasters to begin with?