Some people are looking at the blockchain as a huge advertisement wall so I guess that's one of the reasons why they are pushing for such???
I've see "blockchain" used as a buzz-word, but nobody is going to actually read "the blockchain", so nobody is going to see your advertising. Unless you make it prominent to show up in all blocks so that block explorers show it, but it's probably easier and cheaper to advertise on those sites directly.
It's hard to argue that the fees didn't play a role, and the fees are dependant on the block size.
I'm not sure what you're getting at, do you want larger blocks so that you can store data on the blockchain? The BCH-guys tried that already.
I didn't like the high fees around December 2017, especially since it made it impossible to make small transactions. Long-term, I hope LN (or something else) will provide a solution for this, but none of that is going to help you store data on the blockchain.
Can you answer these questions?
Why would you want to store more? And what kind of data would you want to store in the blockchain that can't be stored any other (better!) way?