Back in the day (2000s) if you were a .NET shop it made sense as the providers for anything else were not as good. And probably you are more likely to get those

Back in the day (2000s) if you were a .NET shop it made sense as the providers for anything else were not as good. And probably you are more likely to get those skills over Postgres. And Postgres was a lot more early. These days a I am not so sure what the case would be other than legacy or very occasionally some feature only SQL Server has. AD would be a big one.