Flood Freeze Sensor Alerts via KeyPad and Phone on Do Not Disturb

I just added a flood freeze sensor and was testing it out. According to the app, it’s suppose to give a spoken alert through the base station AND the keypads. The base station alerts “Water Detected” but the keypads (two of them) make no sound at all. If I switch the type of alert to a sound like “Harp” then it will play on the keypads. Why doesn’t that work for the spoken alarm? Also a push notification is sent to my phone when I’m on “Do Not Disturb” (DND) mode but it still makes no sound on my phone. Critical alerts are turned on in both the Ring App and my iPhone’s Notifications settings (see photos). Are water alerts not considered critical?! I don’t have professional monitoring so a phone call is not an option at the moment. So far, I’m not impressed with this sensor. It’s quite pricey and is lackluster in terms of alerting you to a potential emergency.