Well, what you're doing will still cause the result of AA reporting page
names other than the ones associated with your "product tag" dimension.
Since you're using a Visitor-level segment, you're saying "return all
data for all visitors who had at least 1 hit that contained my product
tag". And since a visitor can view pages A, B, C, X, Y, Z, etc, AA will
report all of those pages too. I suggest that you use a Hit-level
segment instead.