Ethereum's block explorer monopoly undermines Ethereum decentralization efforts

The author of this social media post argues that Ethereum's block explorer market is a monopoly that undermines the Ethereum Foundation's decentralization efforts, even though the Foundation works to reduce centralization elsewhere in the stack. The post says Vitalik Buterin and the Ethereum Foundation have not acknowledged the problem and have instead endorsed one provider as "the name" for block explorers. It also claims that ecosystems outside Ethereum dislike monopolies and act against them, and it calls the situation bearish for Ethereum.