Instead, he preferred to throw 30% of users and change the protocol.
Hmmm? Protocol did not change with superblocks.
You only have to update your wallet.
Also according to the sample seen by the explorer (cf.
https://chainz.cryptoid.info/ric/#!network), if more than 70% of the network is on the new version, of those that are not migrated, more than half are on 0.8.7, which should not be used as they do not include the security updates of the latter versions.