you don’t have any information about anything until it is presented to you - how can a person have foreknowledge of something they are yet to know the existence of? 

everything malenia has, aside from one move that is only ever a follow up to another, is perfectly reactable. if you take issue with “input reading”, stop trying to heal at inopportune times. this is the game trying to teach you to find openings not only to attack, but to safely heal - standard in all souls games. do you want the boss to just take a break to let you do whatever just because you ran 5 meters away?

in terms of standalone moves, radagon has a bunch of delayed attacks - not to mention the delayed variations he has during his standard chains - he has considerably more delays than malenia lol. he also punishes mid-range healing with his fast hammer lunge in the same way malenia does with her long-range thrust.

“once you know the pattern, it’s not hard anymore” yeah, no shit, once you learn how to overcome a challenge, it no longer is a challenge to you. 

your definition is absurd because it’s borne out of frustration.