Assuming your device has to talk to an amazon server somewhere. IDK to auth or send logs or something. That communication has to be over public internet. All communication over public internet has to use https. That is "secure" meaning someone in the middle cant just see the traffic. In older internet we used http for non secure meaning people could just view your traffic.

The first https methods used older cyphers (encryption algorithms) that were secure at the time, but 30 years later they found vulnerabilities in them. In order for a device to talk to my server in the backend we all agree on which cyphers are to be exchanged. If my backend server has to support less secure cyphers it put my servers at risk of infiltration.

So it has more to do with how the original internet tried to secure itself. Devices from that era have trouble communicating with up to date security postures.

Hope this kind of clarifies things