Yes that's fine, fair, and generally true. But that's not the same argument as "they already so much depth so he was expendable" which is all folks like me are saying. Three of those guys were not already in their depth to start the offseason. They were lacking so much depth they needed to acquire 3 players at high cost while not realizing they had a guy sitting right there for league min if they assessed properly or had confidence in their development of him.
But yea, your points on big market, urgency, lower risk, etc are all true as to why they would take such a route with vets instead of banking on him. In addition, there is a legit chance if he was in Bos he would not be performing anywhere near the level he has for MKE due to how well they do with coaching and development here. So in a way that also make Boston correct as there is a very legit chance he'd have kept floundering there. But that's kind of what we're getting at, its because of poor assessment or coaching they made this mistake moreso than that they already such great depth.
I work with a Boson sports obsessed guy, and all year its basically been complaining about how awful their pitching outside of Crochet. Which have to take with a grain of salt because in spite of winning like 25 titles the last 30ish years they never stop being negative/pessimists. But of course then remind him how they gave us Priester/Harrison.