It has nothing to do with a sysadmin. It’s impossible for a given request to require zero processing power. Therefore there will always be an upper limit to how many get requests can be handled, even if it’s a small amount of processing power per request.
For a business it’s probably not a big deal, but if it’s a self hosted site it quickly can become a problem.
Sounds like you need to fire your sysadmin
It has nothing to do with a sysadmin. It’s impossible for a given request to require zero processing power. Therefore there will always be an upper limit to how many get requests can be handled, even if it’s a small amount of processing power per request.
For a business it’s probably not a big deal, but if it’s a self hosted site it quickly can become a problem.
Caches can be configured locally to use near-zero processing power. Or moved to the last mile to use zero processing power (by your hardware)
Near zero isn’t zero though. And not everyone is using caching.