Last time I checked, the man that made SquareSoft into the ghastly beast that it is now, was created by Hironobu Sakaguchi.
Can you guess, for everything your worth, who that man now works for Dno?
And also, to say that Square Enix makes or breaks what an RPG console is, your rather ignorant. SquareEnix does not make every good RPG out there.
And furthermore, out of any generation given, SquareEnix's favor to the PS3 is tenious at best - they've only announced 1 game, as far as I can reccolect, as PS3-exclusive. The rest are either unknown (the vast majority), handheld, or split between the X360/PS3.
And you can say "The PS3 is the best RPG system coz' it's got SquareEnix" but I'd beg to say that 80% of RPG gamers right now are playing on the Xbox 360, and not the PS3. If they were, then there'd actually be a bevy of solid RPGs after more than a year on the market for the PS3, but there are oh-so few - Oblivion, Folklore, Disagea 3, and Enchanted Arms - only 2 are thus far, exclusive....Whereas the X360 has had quite a few more.
So I fail to see how your analysis of the JRPG and RPG market is remotely valid, since it seems you cannot take your Final Fantasy blinders off. Yes, the PS2 was the undisputed champ of RPGs last gen, but it doesn't take much of anyone to realize this generation is vastly more fragmented - No tales game is on a Sony system, no Dragon Quest, Kingdom Hearts is up in the air, we haven't heard anything from Shin Megami Tensei yet, Star Ocean is rumored to be multi-plat, and everything else is on the DS, and a few PSP offerings.
And again, saying that SE is the JRPG market makes me wonder if you ever played a Tales or SMT game...