That is salmon fishing from a boat on big rivers like the Spey where one is trying to cover the water. With stalking on a river or lake, I would agree that it is rare to use a lot of line. However, with chuck it and chance it styles of fishing which, from a boat, bass fishing is essentially, unless there is evidence of bait fish, the more water covered per drift, the greater the chance of a take. IMHO. Of course, it is more than possible I don't have your expertise, in which case I can only say this is what works for me.
Terry.