Negative Nancies being overly critical and missing the mark completely is nothing new. Got used to it over the past 6 seasons.
What's surprising this season is even more positive/normal fans think our squad is worse than last season's when gk, defense (only thing arguable without sounding awkward), midfield, attack all clearly improved on paper. Why it looks worse - injuries and a couple of players doing worse than last season (Khedira, AS) - isn't exactly a Chinese puzzle.
Here, coaching staff is at least partially at fault, so nothing wrong with moaning about injuries. But blaming the mercato and Allegri's tactics are well weird.