Note that I haven't played Kingdom Hearts 3D yet so take what I say with a handful of salt.
Short answer: No, I'm glad they continued.
Long answer: I would have been perfectly content if they had ended it after Kingdom Hearts 2, as far as story-telling is concerned. However, I do like the other games released after (notably 358/2 Days and Birth By Sleep - Coded I could do without). SE have managed to come up with new characters that I like and empathize with which is always a good thing in my book. Those worth mentioning would likely be Xion, Roxas, Terra and Aqua. I know Roxas was already in KH2 but Days explored his character a lot more than KH2 did.
They are certainly making a more complex plot than required but I've managed to follow the plot until now and I still really enjoy the games so that's why I'm glad. The mistake SE have made is trying to get a game on every single console in existence - it is infuriating that one needs half a dozen consoles just to keep up and it is the sole reason I have yet to play 3D.
Short answer: No, I'm glad they continued.
Long answer: I would have been perfectly content if they had ended it after Kingdom Hearts 2, as far as story-telling is concerned. However, I do like the other games released after (notably 358/2 Days and Birth By Sleep - Coded I could do without). SE have managed to come up with new characters that I like and empathize with which is always a good thing in my book. Those worth mentioning would likely be Xion, Roxas, Terra and Aqua. I know Roxas was already in KH2 but Days explored his character a lot more than KH2 did.
They are certainly making a more complex plot than required but I've managed to follow the plot until now and I still really enjoy the games so that's why I'm glad. The mistake SE have made is trying to get a game on every single console in existence - it is infuriating that one needs half a dozen consoles just to keep up and it is the sole reason I have yet to play 3D.