No the barrier of entry is to high on Nintendo systems, first time devs should make PC and mobile games first as you can make them and get them out there without paying anything. And then they should move to a service like XBLI if they want to move into consoles, as again there are no cert costs and you can get a game on there without paying a lot of money, and there is already a large community of indie devs for support as well as mature tools.
Also this "With the other consoles, the hardware is complex and has a userbase that generally doesn't take to diversity in gaming very well. They are all about 1st/3rd person shooters and medieval/greek sword fighting games with magic going by the sells. People who want to be creative or try new things altogether will end up getting nowhere on Sony and Microsoft platoforms." is just trolling and the success of the dozzens of games like Journey, Flower, Braid, Limbo, Bastion, Trials, Minecraft, Spelunky, ilomilo and many many more prove it.