I get that, but when we are discussing Manchester City, they should never depend on one or two injuries in a way that destroys the whole season if that happens. Yes it can happen and if Messi was to get injured back when he played for Barcelona, it literally meant that the game is going to be completely different. But they should still be able to compensate for these incidents on a level that the season is still not that much at risk. It does change the trajectory of a season, but it shouldn't to the extent that it is game over as soon as an important player misses a lot of games.
What you said is absolutely right because a team like Manchester City should be able to find a balance of power more so that they can still be strong when one or two key players are injured. Because if that is the only thing that can destroy them from a good position to a bad position, of course it would be a shame because they should be fighting for the title again this season. The next game for Manchester City is at home to Tottenham who are also in a bad shape at the moment, so Manchester City should be able to win at home without any excuses.
What you said is true that when a top team loses some injured players they should still be able to perform consistently. But do you realize that what Man City is going through right now is not an easy task?
This is not just about the EPL match but Man City also has the pressure of the UCL match with a new system that makes some players tired. On the one hand the match schedule is getting tighter which has a negative impact on a player.
Maybe with this statement we can be more aware that some top teams in other leagues are also experiencing the same fate.