Oh yeah, I was never for banning PoW. I just don't like it since I know same or better can be achieved with a well designed PoS.
Ethereum PoS has slashing so people are scared to stake thus causing low participation rate. Also, in Ethereum, you need a minimum amount of 32 ETH to solo stake. Ethereum also doesn't have a native liquid staking and has locking, unlike Cardano. And you can't delegate your coins without giving up custody of them. Cardano PoS is designed completely differently and is natively liquid with no locking, no min amount to stake, native delegation and both delegation and self-staking is risk free when it comes to your balance. Worst case - you miss out on those 3.5% rewards for the period your balance is delegated to a pool that's not doing its job. All of this is the reason staking participation is like 65% in Cardano. Would probably be even higher if it wasn't for lost coins and large whale wallets that are not staking/delegating for some reason.
We in Cardano have a "saturation" limit per pool. So if you have more than like 70M ADA, you don't get rewards for anything above that. This encourages people with a lot of ADA (either theirs or delegated to them) to run multiple pools. We call them multi pool operators. Cardano community has a really strong sentiment against delegating to multi pools. And if you are wondering if that figure I mentioned earlier (30 pools to reach 50+%) is just a few entities with many pools. No - this is actually 30 individual MPOs (multi pool operators).