Why Doesn't the Mailbox Sensor Work with Chime?

Why doesn't the Ring Mailbox Sensor work with the Ring Chime? It only makes sense to get an audible sound AND a phone notification, covering all bases; if you're home without your phone near by or if there's nobody home so you know if/when mail was delivered. This seemed like such a no-brainer that I assumed I could and purchased one when they first came out. So here I am sometime later checking in and still seeing this is not an option, even with the Bridge I have. Can this happen PLEASE! Otherwise I'm just sticking with my cheap sound making mailbox alarm from Amazon while The Ring Mailbox Sensor gathers dust in a drawer. Thanks!