It's still hard for me to see how non FFS gear is at a decline. The majority people who fish probably dont have a boat and those with one, also probably dont have FFS. Now if more people get a boat or kayak with FFS and only fish that style, then I can see that.
Not saying I disagree with @AlabamaSpothunter and @gimruis whatsoever, its just hard to grasp that happening already.