I think this is taken way out of context. We could have won the scudetto, in christmas it looked possible. We didnt win. Add the ban from europe (maybe blessing given all our issues/players injured/banned/suspended, even Allegri asked for a midfielder in january). Coppa is a meaningless trophy for a club of our size. Its the only trophy Allegri won on his 2nd spell aka "he deserved a better farewell".
You also know after his antics, Allegri is not going to get a farewell press conference like after his first spell with Agnelli.
7m net without the growth decree is ~12m gross. we have some players above that: tek, kean, chiesa, vlahovic, bremer. jj players bearing a cost between 10 and 12m per season: arthur, locatelli, pogba, sandro. that's 9 players in the same ballpark as rabiot, and 2 don't even play for jj (if you consider that pogba had like 20-something minutes this season)
marotta is the only reason they are still functioning