The fact is, people have become use to tornado sirens sounding and nothing happening, fact is people ignore tornado sirens for the most part.
It is not the siren that decides to sound on its own. Someone pushes a button, and may do this with too little reason or..? Fact is that we still do not know for sure which storm systems will produce a tornado and which not. False alerts can not be avoided, no matter if they come by siren or some digital gadget. People will get ignorant on other warning methods as well. It is just important they now that a warning, no matter how it is issued, is nto a guarantee that there will be a tornado, but there may be a high risk. If nothing happened, they can choose to take it for an annoying false warning, or realize that they may have dodged a bullet.
I find digital gadgets annoying, as they too often think they know my needs better than I do. Too often I had to get access to something with short notice, but the digital gadget found an oh-so-important update that simply must be installed immediately, please wait....
The day where a city gets destroyed by a tornado,and peaople did nt get warnings because some digital system either failed completely, or was too busy with an update that was appearently more important that the life of the citizens.
Infrastructure in an area targeted by severe weather may fail, often the simplest solutions win.
I also see a problem in areas with little or partly damaged communications infrastructure, if 1000 storm chasers chase a storm and each transmit livecasts from their dasboard cams showing rain falling on the windshield, and the wipers sweeping, but mainly nothing else. That sudden and massive traffic could block lifesaving communication.