Pausing new registrations for several hours is an acceptable tradeoff for synchronizing records

From the articleEthereum Name Service Team Asks DAO to Switch On ENSv2 and Freeze New .eth Sign-Ups on v1 - UnchainedAlso in Ethereum Name Service Seeks DAO Approval for ENSv2 Rollout on Ethereum Mainnet, Ethereum Name Service plans major .eth overhaul with one irreversible catch for domain holders, ENS Proposes Moving Ethereum Domain Registrations to Upgraded System, ENS seeks approval for major .eth domain upgrade, ENS DAO Asked to Approve ENSv2 Activation Proposal