Healers, not required. (EW SPOILERS)

[Nekaru_Infitima]

Just shows if you can follow the mechanics perfectly, which sadly 99.99999175 of players cannot, you take less damage.

There's this thing called latency, and focus for a lot of us you know. We can know the mechanics perfectly, and still not move fast enough, or know them ahead of time and move but be more focused on trying to hit the combo for damage and in the fleeting moment forget.

I'm sorry most of us don't have the perfect eidetic memory, hand-eye coordination and internet setup you elitists call for.

Thankfully the devs understand NOT EVERYONE HAS THE REACTIONARY SKILLS OF PEOPLE WHO LIVE THEIR LIVES ON CALL OF DUTY.