True, but it makes it significantly more likely that they are, given that Apple has officially said that iPhone sales were less than they had expected.
Possibly in the sense that a stopped clock is right twice a day, rather than this being backed by a credible source. I think the likelihood that this is backed by a credible source is still probably about the same, but maybe this is the year that it is?
Buy just as likely, as happens every year, unnamed sources make this claim, which later turn out to be baseless.
Why would they do that, I wonder?