Not running your own node opens you to the risk of having your data up and disappear. Why would you not solve this through a permissioned chain, or just established CSPs.
Like Memo's and files saved to the blockchain? Easier to just save them to a HDD you give yourself network access to. I do this with TV shows and such. I can watch them from anywhere.
I agree, but for a business that is relying on information being more or less immediately available from a consistent location, it's kind of an untenable situation. Especially at scale
It's risky because of the ability to put arbitrary data on the chain, and the fact that nodes can/will prune blocks that are too big/old. Running your own node opens you to risk.