lack of people liking zelda? i've seen people that have 'moved on' from nintendo saying it is the first time in ages they have been excited to play zelda again.
Zelda never achieved 10M sales, even on the 100M Wii userbase. I don't think it will achieve that on the Switch either. The attach rate will be big, no doubt about that, and it will sell really well, but I don't think 10M people are interested enough in it to buy it.