This isn't just specific to operations, I experience this amongst other developer teams as well.

I've had previous coworkers approach me about API "bugs" because they didn't bother to troubleshoot their app code and just immediately assumed it was a server-side issue.

Then I spend 10 minutes debugging the issue only to point them the error in their own code. I don't know if it's laziness or inability to troubleshoot, or both.