Ofcourse they would. They’re arguably the biggest club on earth. If Barca return to their former successes, is that somehow a black mark on Messi? And you’re missing the part where they were actually worse without him? They’ve won trophies but the side of the last 3 seasons aren’t as good as the sides with Ronaldo. They’ve been fortunate that Barca are a shadow of what they once were and they’ve underperformed in the CL in most of the time that Ronaldo has been gone which implies they didn’t really improve after him. Lastly, Ronaldo was always consistently in the top 3 assists in the team so clearly he didn’t just “score goals.” And even if he did, why is that an issue? It’s a team game, after all and that was his role.
And I don’t buy Benzema being shackled by Ronaldo. He was genuinely poor in some seasons like 16/17 & 17/18. Had nothing to do with Ronaldo if even Ramos amongst others were scoring more league goals than him.