I've been persisting with EM and have come to a conclusion regarding this whole exhaustion thing being attached to dodge for any reason.
First thing - most if not almost every single time I proc exhaustion from a stunbreak it is accidental. I actively do not dodge when dazed/feared/taunted/stunned etc if I know it is there first - because the consequence is of course not worth it.
The rare occasions I knowingly, consciously make the decision to use EM to break a stun it is if I have absolutely nothing else to use first - mobility, F4, whatever... This is extremely uncommon and is usually followed by gtfo.
The reason why all those other occasions are accidental is because it happens in the fraction of time when I decide to press my dodge key (spacebar) and actuating the keypress. There is a delay of reaction time in the signal being sent to the thumb and also the time it takes to press the key past the actuation point. Nevermind taking latency into account...
Instacast or random cc, especially in outnumbered fights, can hit right in that time between those actions listed above and there is physically NOTHING you can do about it - impossible to stop oneself from pressing the button after already beginning to press it. For every normal dodge the game actively holds your hand and prevents you from dodging at all (or allow you to dodge if eg daze). For the situation of EM you have to somehow have to change a decision to not press a button in a time period that is beyond human capability.
So if I'm in a 1vX (or 2vX etc) and some random cc hits me as I'm already pressing the dodge button there is literally sod all I can do to change it - even though if I had the time to make a choice I would of course use other options first.
This may also apply to Unhindered Combatant in a similar but different way (which I also believe was not handled well), but I haven't played DD enough to know whether it is as big an issue as on mirage which suffers hugely when this happens.
I'm not saying this happens all the time - of course I avoid cc most of the time anyway - but I'm saying that it is not good design for this to even happen at all, when it does happen.
Anyway hope it makes sense, and for all the haters/trolls please refrain from piling all other mirage OP complaints in this topic - I only want to focus on EM and more importantly why Exhaustion as a mechanic tied to dodge is bad.