Your statement would have been valid a few years ago. But now all AV providers also offer what you are talking about. AV+EDR with advanced threat hunting UI. So when you say AV today you should really think the other stuff as well.
Defender, in its current state, rolls all of the above into one at a relatively competitive price point. Additionally, it receives new detections built off all the telemetry they get as a result of Windows Defender existing on almost every Win10 OS on the planet.
This leveraging of data on such a scale is letting Microsoft quickly become the market leader for threat detection & response.