Oh my god. What even.
Nope, no one is saying we should be deserving winners of ever match for league unbeaten to not be misleading. Did you follow arsenal's epl invincibles campaign? They were also lucky to go unbeaten and that is perfectly all right if you are only a bit lucky but we have been massively lucky so no, this unbeaten record is defnitely misleading as fuck.
I knew that would provoke
But for real: Why did Ranieri win manager of the year? Because no-one expected them to win with the odds at 1:5000! So great managerial accomplishments also take the squad, conditions, surroundings etc. into the assessment. We had bad odds as well, and therefore the achievement is huge and not just "yeah, but we are Barca, so we should win easily anyway". People think that we would win everything if the players just coached themselves and no annoying stubborn person stood on the sideline. "Messi or Ter Stegen bailed us out" is also not right, when that is what our tactics take into consideration and therefore focus more on defence.
To the last part: I think we just disagree. Imo, we haven't been lucky, just better than everyone else. Like others have pointed out: Hitting the woodwork with no goal or hitting it while scoring is sometimes seen as an indicator of luck/unlucky and this season we have hit it more than ever, but won anyway.
Yes, we had Ter Stegen in topform, but he has had fewer saves than last year
So no "only bailed out by him"-narrative is right, we were more solid overall.
I certainly don't agree with some of the expression of the team during this season, where we gave the ball all too often to Messi instead of playing fluidly overall, where Messi is just a part of it - that would work much much better. But I am willing to give Valverde the benefit of the doubt (now that he has got the results). I'm sure he wants to improve our playingstyle as well.