I agree with @murbard’s point. Now that the discussion about such approaches is open, I would rather see a bridge of wrapping all popular eth tokens to Tezos, building pools on dexter and quipuswap while reducing gas fee and all other friction eth has. Not that it should all be about tokenised assets on cross-chain but I think good defi primitives can be build over tezos natively to further unlock the potential of Tezos.
While what StakerDao is doing is totally their choice, I would like to see their views about tokenising eth defi primities to tezos.