I mean your analogy makes it very clear that usually if a server is temporarily running OOM you might use temporary means to mitigate. You might use mitigations

I mean your analogy makes it very clear that usually if a server is temporarily running OOM you might use temporary means to mitigate. You might use mitigations while you are waiting for new memory to arrive. But what do you want to do if upgrading memory just isn't really possible quickly? What is point not to apply mitigations?