that statement will always be true...skill can overcome but thats not the point. Tier placement takes skill out of the equation and focuses on two robots. That said, I stand by my statement.
Oh okay I get yoU, I gave a response to a question you didn't ask.
Well since I replied I'll have give opinion to your question. Most of the the time a 50/50 would only be a 50/50 in unreactable guesses property wise they are usually different (DMG, Carry, Safety, Range, use of meter or stamina, etc) so if it's a Bo3 its up to your to do 2 things 1. Find the opponents patterns and 2 most importantly use logical and sharp probability analysing to work which would work more times in your advantage to block.
Let's say player x has 30% life and 50/50 where his low does 20% dmg with no meter his OH does 50%1 bar both are punishable and you both only have bar and let's say you have 1 game already in the bag, he gets you in his 50/50 position so he has you, he needs to win this meaning good chance he try the big dmg and if he tries the low he will have to do the low 3 times to win and since it's only doing 20% dmg he will have to rush in to go for the mix up again which he has to respect your bar of meter that can catch him with a wake up and kill at least twice since he needs to connect it 3 times.if he goes for overhead you only have 10% life left meaning he can play a little be more reserved as in zone you or chip plus his 50/50 option.
This obviously varies depending on player and MUs
I know that was a very vague example but is just to show if the char that has a 50/50 doesn't necessarily mean it's a 50/50 in the equal sense.
As a coin flip would you get a point or win, no special properties just a sime point, when in this there multiple variations that takes place in a 50:50
A lot of stuff is similar to Poker and even Chess