It seems like with its newer games Nintendo is constantly trying to use "popular" ideas from other games to try and make their games better.
Skyward's "new things" were:
Non-Pausable Inventory System: From games like Dead Space, RE5
A system to upgrade Weapons and Shields: As seen in games like Dark Cloud, more popular in the Demons Souls and Dark Souls games.
Adventurers Pouch: Pretty much a limited inventory system: As seen in games like RE 1-3, RE5, etc
This one falls under the Other Things part:
Trying to shoehorn the Wii Motion Plus into everything: In Skyward Sword the Wii Motion Plus is shoehorned into everything, from swimming, to trying to make the enemies work with the Wii Motion Plus, it seemed Nintendo spent more time on trying to get everything in the game to work with the damn thing that SS suffered because of it. Skyward Sword had repeating areas, boss fights, the stupid tears from TP mixed with the no damage from the DS games etc. All because Nintendo relied too heavily on the WM+
Other M: This game, thats really all i can say.
Nintendo, stop trying to use other games ideas, especially stupid non-pausable inventory ideas to try and make your games better.