I don't see it the same way. If a good social platform launches, the team behind that social platform will look after its own best interests. They are not going to tie their hands to one blockchain platform, it would be stupid. Whatever "killer social platform / app" emerges, it will be "blockchain agnostic", built in such a way as to be able to work on more than one blockchain. And thus the blockchain back-end will be commoditized, like the hardware servers are now, and the users who provide value will not know nor care what blockchain is behind.
The only way for a blockchain platform (a back-end) to stand its ground in the upcoming race is to be built from the ground up for social, NOT for smart contracts.
Only Hive is designed for that
You wrote the entire essence of a full article in a simple reply, thank you!
"social platform - blockchain agnostic" sounds too perfect, one day it will happen but my count is in years, and many.