Yes, he could have done worse. He risked Stanton's value dropping. How much higher can your value be than after hitting 59 homers and winning MVP?
If you have him stay on a shell of a team he might be very disgruntled and it could affect his play.
A lot of bad stuff could happen, not much good.
No teams even claimed him on waivers this year, as you recall, and that was of course in the midst of pennant races.
What teams exactly do you think would have been added to the mix?