I don't think so. If I was to claim that more people will buy Macs than PCs, then you could say "the customers have spoken" and that I was wrong. But I never claimed that.
Ballmer here is claiming that nobody wants the iPad form factor. That's just patently false and you only need to point to sales numbers to show that.
All I'm doing is to point out the implications of your reliance on current sales as a measure for future success and/or 'goodness of product' (whatever that means). If you try to mix and match your metrics (or tenses) without explanation then you are being roughly as (in)consistent ad Ballmer himself.
Ballmer here is claiming that nobody wants the iPad form factor. That's just patently false and you only need to point to sales numbers to show that.