PDP and Hori have been doing licensed products, including controllers, for Nintendo and other companies, for a long time. It's not like someone at PDP sat down saying, "hey let's make folks like LightyKD happy with these awesome controllers with Nintendo designs!"
I play Smash Bros. competitively so I'm avoiding these 3rd party controllers for two reasons: 1. they connect via Wiimote, which introduces at worst a 1-3 frame input lag, 2. the "fake analog" shoulder buttons make them slower to input, causing "real life" input lag. For me, the only way to play Smash Bros. is using an official GameCube controller using the USB connected GameCube controller adapter. These controllers are very nice, I admit that. And I have the Pikachu-themed Hori controller myself, but aesthetics aside these are inferior products to the fully wired set up that I play with, so I see no reason to praise these products either. They are, at the end of the day, glorified Classic Controllers. Nothing more and nothing less. I don't see what's snobby about that.