If the team is in the playoffs almost every season going forward, I'm not going to complain what the payroll is. I don't think they have to replace every player that walks out that door. Right now, the holes are 2b and 3b. One of those positions will be filled by Mayer. If the other is filled by Bregman, fine. If it's filled by Donovan, I'm not sure it's enough of a replacement over the short term TBH.
I try not to be too hung up about it, but it's hard to say "look at the 4 championships" when they've clearly changed their spending habits since then (and have done lots of psychic damage to the fanbase by trading and letting go of franchise players).