RAM is just one example. Every simpler service has its limitations, and if everyone (including new hires) knows the simpler service well -- it's perfect. E.g. in my experience everyone knew App Engine at some point and it worked well for us. Now it's a zoo of devops pieces, so I tolerate Kubernetes only because everyone kinda knows it.

And the Kubernetes was just one example of my "you're not google" point. There is many more technologies that are definitely overkill, but is a good common denominator, even when it's 1000x more complex than needed for the task at hand.

PS: Btw, I dunno why people downvoted your comment. It's fits the HN "Guidelines" at the bottom, so upvoted.