It's 32-bit PCs. And while you may be well off and in a PC-friendly country and be rocking a 64-bit rig - even I have only 64-bit machines and I don't have a PC capable of running this game - many people aren't. More to the point, many people in Japan who have PCs are using ancient toasters with actual gaming PCs being viewed as rather nerdy luxuries. That's why Yoshida has started begging people to upgrade so early and highlighting shortcomings caused by 32-bit limitations. They'll drop 32-bit support eventually, but until then he needs people to consider moving to modern PCs or consoles if possible.

Of course, some people will just blame consoles regardless.