Well, I'm not trying to rebalance either these weapons. (And you can do a flak fish, you just need coordination, like a double gat Pyramidion......frankly, you'd be doing the same deal as the LumberFish)
But yes, with a Galleon, or Spire, you can easily stop a ship...well mostly kill it...before it gets to you.
But mostly trying to show how far you must be to keep the weapons useful with what shots.
Frankly, if you compare the shot counts and such, a Lumberjack excels better with Incendiary rounds than the Typhon, since the Typhon gets one shot.
While the Typhon works better with heavy clip than the Lumberjack.
But those are my opinions.