Based on the definition from Adobe, the metric 'prodView' metric counts the number of hits that match either of the following:
1. The value prodView exists in the events variable; or
2. The products variable is set, and no shopping cart events exist in the events variable. Any event that is not custom (event1 - event1000) is a shopping cart event.
#1 is fine.
But I doubt #2. We set product string (Product & Product Category mostly) in almost all our form pages (BnF sector) but never seen that 'prodView' is incremented. It is a BnF sector and thus I am sure that we don't set any shopping cart events as said in #2.