The new term for "Sport Tourer" is "Endurance Bike", and all the bike companies make them. They even conform to Bikemig's rules. They sell more of them than all of their racing and touring bikes combined. Why? They are less expensive and fulfill most riders needs.
It was the same way back in the day, most of all of the road bikes made were Sport Tourers. They don't get as much attention because they weren't as unique and expensive. They are our daily riders. They do everything well. We are more apt to customize them to our riding needs, mix and match if you will.
Thanks to Bikemig for starting this thread, Sports Tourers are the bread and butter of C&V bikes.