>>50473792Nah. In-game, rock-paper-scissor beats BST (unless you're talking Sinnoh or Unova, where both matter), and so does access to high BP moves. Name one Quagsire weakness that isn't Grass, then consider access to stab Surf, stab Earthquake, Ice (like all waters), Rollover, fighting moves, Sludge Bomb against grasses, and a good heaping of buffs (including Curse).
In other words, it's a physical Water that doesn't fold to electricity and trades Ice Beam for ability to break through fellow bulky waters. Not quite Lanturn or Swampert tier, but not shabby at all.