AFAIK they are already at 6-8tb for their blockchain. Seems to be not very helpful with a high diversity of staking nodes. I am in doubt that their turing complete global computer can scale AND stay decentralized
That's only for an archive node which isn't that useful to the network and is generally only used by specialist. A full Ethereum node easily fits on a 1TB drive and with research ongoing into statelessness the problem of state growth won't be a problem long term.