A criticism of the setup is that today’s rollup sequencers are typically run by “centralized” entities, and thus represent single points of failure, potential vectors for transaction censorship, or possibly a choke point if authorities ever chose to shut it all down. Coinbase, for example, runs the sequencer for its new Base blockchain, a role that could produce an estimated $30 million of net revenue annually, based on estimates by the analysis firm FundStrat.
Source: https://www.coindesk.com/tech/2023/09/06/everybody-in-blockchains-talking-about-sequencers-heres-why-theyre-misunderstood/?utm_medium=referral&utm_source=rss&utm_campaign=headlines