As I said, the examples you chose are for the simplest use cases, and fungible applications/features for which the raw data is pretty much the whole thing and having a database dump is enough.
Valuable applications more often than not simplify complex things or do hard things behind the scenes. Their value is in the workflow/experience or the processing that takes place on the data, including APIs and integrations to unlock users' creativity.
>It's true that the limited period of time between end of life and servers going offline may be a problem, but that tends to be a long period of time (3-6 months in general from the services I've used that have shutdown).
Again, have you used these as an individual relying on them lightly, or heavily, or as a business/organization where your work relied on these? Have you used them as a user, or as the person who was involved in making the purchasing decision for the whole team/organization?