Something to add into the consideration:
1. 2 weeks ago, we were Barca, a treble winner and a team who is on a way to repeat the treble
In those days, it was somewhat understandable that Lucho is not changing anything from his winning season (MSN, Iniesta-Raki-Busi, defensive line, Bravo-Mats situation), because that's how it goes: you shouldn't change (in majority of cases, or at least not too soon) a winning team
2. today we are Barca, a team who got knocked out of a CL even though we had (by far?) the best team
Things have changed a lot in the past few days.
A few days ago, Lucho was 99% sure to stay, and there weren't too many reasons to question any of his decisions, since, we were Barca, a treble winner and we looked as if we will repeat the treble.
It remains to be seen what will happen with La Liga now, and with Spanish cup.
But either way, imo, Lucho probably isn't 100% sure anymore that he will stay.
Even if he wins, his situation won't be as good as last season (at least in his eyes, after a CL debacle and how we turned La liga into a mess currently).
So, regarding Bravo-Mats, but also regarding some things (like MSN's backup in the future), some things might change now.
1. if Lucho stays for 2-3-4 seasons, he will probably act differently now, than until today
I expect some changes in the next season in his approach, because he has realized that he made mistakes this season
2. if Lucho stays for only 1 Season
= Mats has a huge chance to play in the next season, or "after Lucho"
3. if Lucho will quit this summer
= everything is open on a GK position under a new coach
So, imo, in a some strange way, our CL elimination is "good for Mats".
Barcelona will be a slightly different team from now on.
Some things will change, with or without Lucho.
Unless if Lucho will do everything exactly the same, and repeat the same mistakes.
But then, he also won't last too long.