For them, managed DBMS was a life-changing event. As soon as they had RDS or even Azure SQL MI, they were begging the cloud team for more, so they could get their team back.
In some businesses, it's definitely not a big loss to lose agility by having a large portion of your team tangled up in infrastructure management, but for some businesses, that constraint is an impediment to their line of business. Some businesses are missing opportunities for want of infrastructure being able to move fast enough.