Not this again... . He didn't exactly delivered on Anfield in the key game did he? He wasn't terrible, but wasn't great either. There's a reason why we are 0-16 or something in key away games in CL. The attack, and Messi is a large part of it, is shit.
If anything, I've always said set pieces is the only aspect older Messi is better than younger Messi at.
So,
0-1 Atletico
0-2 Atletico
0-4 PSG
0-3 Juve
0-3 Roma
0-4 Liverpool
2-8 Bayern.
0 goals by Messi in 7 games. 25 goals conceded. He doesn't defend, and doesn't contribute with end product either. You could make a case if he didn't defend, but scored in most of those games. Yet he has 0 goals and 0 assists in 7 games. All that is left in those games is us trying to defend with one man less. A main reason why we conceded 3.5 goals / game.
In La Liga he has been a huge weapon in our prolonged dominance during his era. In CL he has been more of a liability in the 2nd part of his career.
You can pull these types of stats up for any player. Even Ronaldo. Also disappointing you're purposely missing some key things. Messi set up good goalscoring chances in the Juventus 3-0 and Liverpool 4-0. The rest of the games he was poor in for sure.