That objection doesn't make any sense because those complaints are unrelated to the complaints people have about Windows 8. If you want to say that directly attacking your competition is un-classy, fine (although a better criticism might be that directly attacking your competition is known to be ineffective marketing). But to say that specific random shortcomings of Ubuntu have any bearing on the matter is silly.
1. Attacking your competition is definitely not classy.
2. The suddly introduced shortcomings of Ubuntu are being ignored and regularly hidden away under the wave of marketing from (1).
For what it's worth, that slogan seems to have been changed now: the home page now just says "Your wish is our command." Though I'm sure critics will still see plenty of irony there.
Windows 8 will be cheaper than previous Windows upgrades but lets not forget about the pillars of free software and why to support it.
Perhaps this is all just arguing semantics, but the idea that motives matter is important to me.
Or do I misremember that?