Most normal people also don't keep large amounts of data or long running programs in memory for long periods of time, which is the case that is most vulnerable.
is this even true of a typical server workload? I guess it depends on the server and the work, but certainly for a webserver, this doesn't seem true.
It's true of databases or storage servers that rely heavily on caching in RAM (like with ZFS). Also many HPC workloads, which might be storing e.g. huge matrices distributed in memory over many nodes.