your alerts seemed to have worked if you got one alert right? I used to work with situation alerts, and the "one alert" thing is a trap, you miss one and you're done. I coded alert recaps, alert reminders, custom scheduling etc etc, if you have opportunity for getting alerts, don't write them off because you got just a single alert, stop counting on perfectly response to a single alert and lean into multiple alerts wherever possible. take care of the human tasked with responding to alertable situations, we're imperfect error prone blobs of protoplasm lol