Should Ethereum Layer 2s Urgently Decentralize Their Sequencers?

Consensys' Linea halted block production after a $6.8 million exploit on the Velocore DEX, renewing calls to decentralize Ethereum Layer 2 sequencers. Offchain Labs CEO Steven Goldfeder says the sequencer is centralized but validation is not, and that decentralizing sequencers is a "bit smaller than what a lot of people might expect." Galaxy Digital's Christine Kim argues that rollups should also build working fault proofs, robust governance and lower reliance on admin controls, since a decentralized sequencer may be among the hardest goals. Of the top five L2s by TVL, only Arbitrum has a fraud system in place, according to the article.