I’m pretty sure that the business goals connect to the technical non-support. Companies need money. Volunteer operations like Duplicati need donated services (because money is too little to hire people).
Inexpensive Cloud Storage Option has some comments on the perils of good deals for the consumer.
There’s a startup’s failure there. For a big-business failure, look at Amazon Cloud Drive discontinued.
Backblaze is an interesting business. Their personal backup client aims for high simplicity, which means an unlimited storage model. For how that flies, do a web search for “backblaze” “lives on the averages”. People who want fancy backup programs pick what they like, and pay for just what they use on B2 side.