CCP Games' stated reason for EVE Frontier being a blockchain game is very stupid.
The argument in favor of using the blockchain is to create a permanent, immutable universe with elements that are made by players and exist in perpetuity.
However, if the game is based on a blockchain, nothing can ever be removed from the chain ever.
Putting stuff on-chain makes it actually less accessible and does not work well for doing anything other than running a transaction log.
If someone accidentally makes bugged content that permanently damages your character in some way, you can't patch it out if it's on-chain.
CCP Games has made claims that it doesn't want people thinking of this game as a blockchain game while also playing up the idea that it needs to be on the blockchain in order to work.
The latter part is a lie, and the former part is a bad job of smoke and mirrors.
Building it mostly to chase the investor cash that's sloshing around for otherwise legitimate brands stapling themselves to blockchain nonsense is also a possibility.
In conclusion, EVE Frontier is a worse MMO due to the implementation of blockchain.
CCP Games is trying to play around with the idea that EVE Frontier shouldn't be called a blockchain game, which is something that readers are not buying.