I don't think that threat ever really materalized. MEV happened and then there was a suggestion by VB of switching to the PoS chain in response to a miner lead

I don't think that threat ever really materalized. MEV happened and then there was a suggestion by VB of switching to the PoS chain in response to a miner lead fork: https://notes.ethereum.org/@vbuterin/B1mUf6DXO https://notes.ethereum.org/@vbuterin/B1mUf6DXO