No. Maybe at the moment, but the end of this generation will see JRPGs spread across all platforms.
I mean, you can probably count on one hand the number of JRPGs that were NOT released on the PS1 in it's generation. Ditto with the PS2 generation.
I really doubt any of the three consoles will be able to make that claim when the next generation starts.
EDIT: In fact, the JRPG discrepency probably goes all the way back to the NES/SNES. How many JRPGs were released for the Genesis outside of Phantasy Star?







