While releasing a game on a number of different systems does help, I don't think it helps as much as you'd expect. In the end, the number of people who buy the game will be just about the same -- they'll just have more choice as to WHERE to buy it.
With the 3DS being new, however, I do believe that could account for lower sales -- but isn't that the point Takao was trying to make, that 3DS sales aren't particularly great right now?
Nonetheless, I'm actually in agreement with you, Stealth. If that number is accurate, it's honestly not bad at all. 130k sales in this short a time period seems surprisingly high to me. It may not be up to Capcom's expectations (who knows?), but we'd sure love to get sales numbers like that.
You do have to keep in mind, though, that those are numbers for a Resident Evil game. We'd be lucky to get a small fraction of that with a niche RPG.
-Tom