I always do that when working with a new cloud provider. I spend our Series A as fast as possible after which we can optimize cloud spend!

Yup that's a variation of the general 'deliver a hugely inefficient solution first, then iterate' tactic. Keeps multiple people employed much longer than a little (debatably) "premature" optimisation ahead of time, keep delivering benefits QoQ (that could have been delivered sooner, but whatever...), keep managers happy.

Cloud providers love this one trick.