Very easy to blame handhelds when Capcom themselves never put real effort behind the 3DS games in the west.
The long wait for localizations, no collaborations tailored for Western market, no presence outside of Nintendo events, no marketing campaign outside of basic blog posts... the list goes on and on.
But guess what, they still sold close to or over 1 million copies. The franchise has never been more popular!
If not for Nintendo those games wouldn't have seen see the light of the day. It's pathetic how much Capcom relied on them.
So please, miss the 3DS and redirect your anger to Capcom.