Transition denials and stamina from top position

I’m noticing that when I’m on top with a high level wrestler and deny nearly every transition my opponent attempts, there’s almost no meaningful long term stamina penalty for the bottom fighter. The short-term stamina drain is minimal too. Meanwhile, I’m the one burning more stamina by throwing strikes, advancing position, attempting transitions, or even getting my own transitions denied while working toward dominant ground and pound positions. It explains why I can dominate someone on the ground, deny almost everything they do, and then still get swept from bottom by a lowtier grappler—even if I’m using khabib. That makes no sense. If a fighter repeatedly gets denied while stuck underneath an elite wrestler, they should be paying a much heavier stamina cost over time, not getting to recover and reverse the position like nothing happened.