Balancing around people's mistakes is bad.
Rather it's better to look consistent errors and mistakes and see if it's an issue with how the game presents data to the player. Dots have always historically been lacking in presentation from ARR. As I mentioned elsewhere, a few fixes are to make personal debuff icons on the boss target/focus bar much larger and clearer relative to other debuffs, another option would be either to have a self only aura attached to your own dots, or perhaps even have a distinctive sound when your dot falls off.
Designing the game around the mistakes is a bad choice as IMO that's a big part of what's landed the game in it's current state. A lot of people will play to the standard the game expects of them which is why you see things like this:
https://www.youtube.com/watch?v=wAJ9InV3-MI