These costs are more meaningfull for those who bootstrap their businesses and projects at their own expense. I have a personal anectdote where switching from a scripting web framework to a compiled one reduced the runtime size, and the deployable environment went from 800mb to 10mb, which allowed me to fit all my deployments into a free-tier monthly quota of AWS ECR.

Given I already knew both frameworks from fulltime jobs, it's a great net benefit.

It also means that whoever wants to use self-hosted open-source alternatives of user-tracking services (notes, calendars, emails, etc), they can do it cheaper or even for free.