Because it converts all normal DBA tasks into development tasks. If this fits your org (and at huge scale it is more likely) then that's fine, but for small/mid

Because it converts all normal DBA tasks into development tasks. If this fits your org (and at huge scale it is more likely) then that's fine, but for small/mid/growth places that can be a PITA. There does seem to be more effort going into an SQL layer, but it's very hard to know what the state of layer dev and direction is these days, especially if you're not located near core devs.