Well, since it's distributed / decentralized you wouldn't depend on a particular company (or service). This way you wouldn't need to worry about it being shut down.
You would still depend on the constant availability of an origin for your data.
IPFS is not magic in that regard: if whoever is your origin disappears, then your data is likely to disappear at some point, especially if it's not super popular.
There is no free lunch: you either become your origin yourself, or you pay someone else to be.
But because it's distributed, you can be the origin for hundreds of pages on a tiny $5 vps and when popularity increases you would not have to shoulder all the load.
IPFS is not magic in that regard: if whoever is your origin disappears, then your data is likely to disappear at some point, especially if it's not super popular.
There is no free lunch: you either become your origin yourself, or you pay someone else to be.