Wow are people really defending the use of resistive screens in a game console released in late 2012? There really is a defense force for everything. Resistive screens made sense in the DS-era due to the screen size. UI and menus were so small that users needed the precision that resistive screens provide. When you have a 5+ inch screen it doesn't "need" that level of precision unless you're writing or drawing, which aren't typical applications of a games console. Capacitive screens provide a better experience in regards to gaming. They work much better with fingers (smoother scrolling, not having to push on the screen, no stylus ever needed), have multi-touch, and work on a solid surface that won't scratch (resistive touch screens have poor durability compared to modern capacitive screens, especially since you're constantly using a stylus).
It's clear Nintendo was just being cheap when they put a resistive screen in the Game Pad.
EDIT: Miiverse isn't an excuse for using a resistive screen. It's a games console so the deciding factor of whether or not a resistive screen is useful should be games. And it isn't when compared to capacitive.