"The network is unreliable" is a rule of thumb that was drilled into my head in network programming class.
It always has been, it always will be. Doesn't matter if it's the internet or the link between your computer and a device sitting on your desk. And it doesn't matter what the tech is.
Making the internet more resilient only increases the severity of the failure when organizations that don't understand the risk they're taking on experience network outages.
The network is unreliable.