On the multiplier, I think its not a right move.
A protocol being OP native should get highest weight but we should also give equal voice to protocol bringing more user/trust to the chain even if they are multi-chain in comparison to an OP native project.
Beefy/Curve/Uni to name some, they are funneling more users, transaction and TVL in comparison to few OP native project ( Optimism TVL - DefiLlama ) and giving multiplier to OP native will not give justice to such multi-chain project, given that they are interested in gov.
For me its more important on which project is keeping the sequencer busy as its revenue will help our other house, Citizen house, so I will work towards giving them equal voice.
Also would like to echo Joxes view that this will discourage independent or individual delegates.