You don't think there is variance in performance when you rent hardware? You've never had an HDD or SSD that underperformed vs. others of the same type or model? You've never had a stick of RAM that underperformed, or threw lots of CEs?

I'll be frank: If you haven't seen performance variance with physical hardware, you either have been incredibly lucky, not paying attention, or not working at a very large scale.

Ah, that delightful cloud propaganda move, where you assert that because some undesirable thing happens to both VMs and physical machines, that they're the same, elegantly glossing over the orders of magnitude difference in severity.

I'm not sure how it's "cloud propaganda" to say that performance variance is a very real thing in response to someone making the claim that it doesn't exist when you rent servers.