That particular thing is one of the fundamentals of the protocol. If you want something else, then IPFS really isn't what you're looking for. If that model is what expected from reading the landing page, then I guess the landing page doesn't clearly communicate how it works.

What you're asking for is a bit like asking Bittorrent to suddenly change their model to a model where people can push data onto other nodes.

If that is truly what you want, probably something like Freenet (https://en.wikipedia.org/wiki/Freenet) would be more suitable, as it's highly unlikely IPFS would change the protocol in such a major way.

What you want then is the old Freenet.

But that model also sucks. People have to contribute a pool of storage to the network, and data is spread through it by uploads and usage. It's extremely prone to losing data especially with big files, and it's low capacity because content needs a lot of duplication to actually be reliably retrievable.

And if nobody wants it for long enough it'll fall off the network entirely.