There will be some people that view Nintendo's online policies as a hassle. Geez, I have to do this to get voice chat. That is annoying...I can instantly have it with Xbox 360.
Sure, those people will exist, and they will view it as a negative. I will not say weakness, because Nintendo WILL still have voice chat with Nintendo Wifi...it already exists.
However, there will be a great many people: I am one a hardcore gamer, that doesn't like the annoyance of dealing with the "bonuses" along with online play. Sure I can talk to people and plan stratigies, but I also have to deal the the F Bomb every few minutes and your mom jokes...or people whining about cheaters and such. No thank you.
You will also get adults whom will venture to play online games, and will be thankful that the system is thoughtfully crafted to include a nice feature to use with friends, but disable it with strangers. I can still play Hearts with strangers, but I don't have to deal with knowing my partner is actually a 13 year old boy looking a porn while he is playing.
Finally, you have the parents, that have been watching gaming get more graphics and dirty every year, and have been watching television about the predators using MySpace to sexually assault children. They look at online gaming as a risk, and Nintendo's Wii is online all the time if you have Wifi in your house. That is pretty scary. But wait...Nintendo has a friend system in place that helps protect and manage whom can really access and talk to your children. Nintendo is the safest system for my child.
I do understand some minor complaints if the system is handled exactly the same way as it is currently handled, but I think Nintendo is going to evolve the Friends System. I am not being negative because I don't know all of Nintendo's plans, and I think it is foolish to start slamming them with incomplete data.
You may think Nintendo should only cater to you, and similar gamers, but Nintendo must always look at the broader picture...specially when they are trying to broaden the gaming market.