Let’s start with a simple truth: There are no bad MiLB contracts.
The organization does not invest in the player, and there’s a decent chance they will start in Triple-A as a kind of ‘break glass in case of emergency’ backup.
Moreover, it’s not unusual for any MLB team to sign a number of players to MiLB contracts for just that reason — and sometimes, they work out. Look at Connor Joe (for the first half of 2021) or CJ Cron in 2022 or Mike Moustakas in 2023. Sometimes, an MiLB contract with an invitation to spring training is a win for all parties involved.