I have been trying to see why full p2p decentralization matters, but am unable to find much support for it.

[1] https://muratbuffalo.blogspot.com/2018/03/change-my-mind-abo...

[2] https://muratbuffalo.blogspot.com/2018/02/blockchains-from-d...

The applications of full p2p decentralization are also not clear:

[3] https://muratbuffalo.blogspot.com/2018/03/blockchain-applica...

[4] https://muratbuffalo.blogspot.com/2018/02/paper-review-ipfs-...