First one, noone cared as much as having an undefeated season because no one managed to do that so far, it was so rare that you couldn't even hear most people talking about an invincible season because it just wasn't on anyone's mind, not losing once in 38 games is a feat, whatever way you look at it.
Every league, champions league, or world cup title is just a title as any other if you want to look at it like that, and we're not talking about an undefeated 80 points run, we're on route to 93, let's start calling things like they are and not start the downplaying game.
Also, what most people here are failing to notice, this isn't some league run with 5 senses only in the league title, like say one club without Euro competition and falling soon in the Cup would do, it's an invincible season with the team going to the end in the cup and just 3 games short of having a full season of games with the UCL, adds even more weight to the feat.
So, pushing at the height of the neck is a red card offense, but slapping someone in the face is a yellow card?.
That's it, not much to say, with that bias is understandable you think Messi should be out in the Ramos incident, first if we play "what ifs" Ramos has to be shown a yellow for his action with Suarez (Messi "punches" Marcelo in the back? Ramos leaves an elbow and the leg for Suarez) and with the 1+1 logic you use (because if Messi was on a yellow for the Marcelo incident, he'd totally be so dumb to tackle Ramos like that so he can get the 2nd one) it should be 1+1 for Ramos in the Suarez action too. So in your whatif~ism the action between Messi and Ramos doesn't even happen, because with your criteria Ramos gets sent off before that.
Everyone can play "how many players of the other team can I eject with the video", but it's just a waste of time
It only lacked Espanyol being relegated to be the perfect league season for us, but that is out of our power