[vgt]

Google Cloud platform offers Custom Machine types specifically to help you configure the most optimal CPU/RAM combinations:

https://cloud.google.com/custom-machine-types/

Quizlet's post alludes to Google's attitude as well. With exception of GPU instances, Google's VMs are generic. You are able to get incredibly fast SSDs, best in class networking, etc, on just typical instances. Benefits are pricing is simpler, spot instance/preemptible VM market is simpler, and you get much more architectural flexibility.

(Disclaimer - work on Big Data @ Google Cloud)

[abrookewood]

That should probably be emphasised a bit more in both the article & in general. It's fairly common to have wasted RAM or CPU or whatever because you had to pick a particular instance type in AWS ("I need better networking, so I'll have to pick a larger instance ... pity I don't need those extra cores").