Our API is just appsync (graphql) + lambdas + dynamoDB so, theoretically, we shouldn't have been affected. But about 1 in 3 requests was just hanging and timing

Our API is just appsync (graphql) + lambdas + dynamoDB so, theoretically, we shouldn't have been affected. But about 1 in 3 requests was just hanging and timing out. As others have said, they are not being forthright about the severity of the issue, as is standard.