Are you equating the wins and clean sheets entirely on Maguire and Lindelof now? Such a simplistic way and bias way of looking at things. Defence = down to the centre back pairing, attacking = everyone else but completely ignoring the massive roles of McFred, defensive shut down ability of your Shaws/AWBs and then the cautious way we play football by not trying to high press or stretch play. The defensive stats is completely down to all 11 players and the attacking is also all 11 players. From that you should judge on an individual who are the weakest links.
I'm sure we have equally very impressive stats when Fred plays and as much as I like him, are you going to defend Fred as 'not really a problem'?
As for the bolded bit, the point is that Lindelof should be the one good enough to 'fill the gap'. Now that Maguire is injured, it's highighting how massive the gulf in quality and ability is between them two. Is Lindeof better than Bailly/Tzuanbebe etc? Based on his form and virtue of just being available, yes he is. Is he a comparable replacement for Maguire or at his same level as a partner? No and nobody with a straight face can say he is of undeniable similar/equal impact.
If he is, then he needs to show in every game now until the end of the season that he is head and shoulders, the better defender marshalling our defence. Based on history though, the likely result is that he will play his game 'consistently' but never do anything stand out.