Hence why I said "little to no bugs" in my post. Come on, you even quoted it.
Sometimes, they're just inevitable (especially in larger games) and you can't find them until the game's been out. I remember the one Skyward Sword had- and it was just one, which immediately got a patch! Either way, if Zelda U has a couple, I'm not gonna complain that they should have fixed them beforehand. It's a huuuge game and there's gonna be a lot of ground to cover. Oh, and the whole thing with indie games is that a.) they tend to be a lot smaller than big console releases, so devs have less to worry about, and b.) no, they're not always bug free, and plenty of them have bugs upon release. Oceanhorn was poorly optimized when it first came to PC and had some problems and required patching before it would run well for a good number of people. Dungeons of Dredmor had bugs that were game-crashing, where they literally made an achievement for when that happened to you (though you probably can't get it now). Gunpoint had a bug where music would stop playing randomly and wouldn't work again unless you reset the game, and it would just do it over and over again anyway. IIRC, Shovel Knight had a couple when it released. These are all highly acclaimed indie games, and they're not really any different. And honestly, a big factor in what causes games to be game-breaking usually deals with the conditions of their release or who worked on them. Sonic Boom was unfinished, Master Chief collection was done by a poor developer, and the Assassin's Creed games are on a strict yearly release that their publisher holds above game quality.
The whole point is that this is a series that Nintendo holds onto very dearly. They're not always bug free, but if they do have bugs, they're mostly incredibly minor and it's not really a problem whatsoever. Again, the Skyward Sword bug was an issue...and there was a patch update right after some people found it. :x