From the best of my understanding a brick or semi brick will occur in the follow scenarios:-
Power Failure whilst installing firmware/ update.
Installing firmware update from an out of region disc (original or copied)
Bad firmware/ system crash whilst installing an update
Your question is slightly beyond my scope of understandings of firmware/ios/updates from discs etc.
Differnent threads suggest different/ contradicting things. If the update is purely on the disc and doesnt have to have ur wii online then I think you are going to be fine with animal crossing (there was some conflicting info on mario kart and mario galaxy updating to latest firwares or something in a thread)
I think it was this one check it out see what you make of it
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In all honesty I think if you have a chip you are fine with the games you are talking about if there was an issue u and me wouldnt be left wondering about it the forum would be flooded.
U can do the zelda hack with a some sort of boot disc aswell with a modchip do a search for it and then ull have homebrew