On the trolling ban thing, I believe the primary answer is because when Ray Scott first started and devised the rules for his national B.A.S.S. events, he envisioned a competition where guys who didn't know each other were paired together in boats and competed "mano y mano," cast for cast, one lure each. Each angler was competing against all the other guys, and everyone's weight was an individual score - let the best man win. As such, there was no good way to implement trolling into the game and keep with the spirit of competition and fairness he sought. Since Ray and B.A.S.S. set the rules, most every other bass tourney organization that followed did the same.
If you take note of the professional tours for other species you'll see a difference. For example, the walleye guys (PWT, AIM, etc.) were always paired as a pro and a co-angler in the same boat, and had a shared weight system (work as a team, and the weight for the boat is the weight recorded for both the pro angler and the co-angler). Makes trolling and scoring fair for both partners. Even lower AAA levels like MWC are team events, fish with a "buddy." Similarly, nearly all professional crappie events are "team" events, where the team (both guys) get the same weight for the day. As such, trolling is a perfectly good tactic again, fair for all. Ray set the rules for bass competition, so that's how we play the game.
I think the Perry/Eisenhower thing really happened, but the timing was coincidental given it happening shortly before the formation of B.A.S.S. and their professional tourney circuit.
-T9
Oh, and Ray Scott once held a fly fishing B.A.S.S. tourney B.A.S.S.' fly rod tournaments preceded a trio of Invitationals in 1975. The events were B.A.S.S. founder Ray Scott's way of promoting fly fishing among the Micropterus crowd. Anglers earned points for the fly rod events that counted toward AOY. About the only rules for these one-day tournaments were that you had to use a conventional fly rod and reel and cast in a conventional fly-fishing manner. Lots of anglers unaccustomed to fly fishing used the long rods to throw small plastic worms and jigs....Ricky Green won one of them, and even Rick Clunn placed high in an event... and it was at a fly fishing conference where Ray first got the "catch and release" idea.