The same DMs that keep replying to my posts that keep saying they solve the problem by windy conditions, extra creatures, creature altering, opponents always having the means to reach 50' in the air, etc. They are the ones saying it. If they said: "For any of these encounters, such as scorpions in a desert, gelatinous cube in a swamp, treant in a forest, etc. I would just let the player be perfectly safe and reign down damage." I wouldn't make sweeping generalizations.
Of course, once a PC becomes the safe and damage toting adventurer, odds are many will follow in their footsteps. Which will solve the problem. It's when there is one and you target that one that it becomes a toxic game.