Yes, they are allowed, of course... but being "unimpressed with Apple's marketing speak", a topic having been thoroughly traversed, seems counter to Hacker News's stated desire for comments that substantiate new thought, or create new or interesting discussions.
That's fair, I agree that it has sparked interesting discussions. Looks like we can't write off topics just because we think it's been thoroughly discussed already.
How "new" are the discussions though? Maybe we should try to find a previous thread where someone said the same thing and compare the discussion there?