Jason,
It depends upon each individual's ability to gather data and make an intelligent analysis, which, is dependent upon the inate intelligence* of the individual.
That doesn't mean that an individual can't have a preference when it comes to style.
The question is, can the individual ignore his preference for style when making evaluations.
Some can, some can't.
* Intelligence assumes that the individual is well versed, well schooled, experienced and well read on the subject/s, for if an individual's sole knowledge of GCA was obtained without those outside influences/sources, they're analysis will be more self centered.
However, in TEPaul's case, it doesn't matter how much he reads, it doesn't matter how many people he talks to, it doesn't matter how much he accesses the internet.
What really matters is how his faithful guidedog "Coorshaw" is feeling on any given day. Without Coorshaw he's lost.