Ethereum

1/ I believe that the chain temporarily halting for 6-12 hours is a preferable option to penalizing over 80% of the stakers, especially until we attain a sufficient level of client diversity within Ethereum. We've learned over the years that downtimes don't kill chains.

Ex-/coinbase. Creator of Coinbase Wallet & Cipher Browser. Eng Lead $USDC. Advising /polygon Labs, @family, and @tribes. petejkim.twitter

2/ I acknowledge that some may view the potential disastrous outcome as a means to encourage client diversity, but it's important to note that the majority of everyday users rely on third-party services for staking and have limited alternatives.

Robust Incentives Group @ Ethereum Foundation

https://rig.ethereum.org

84% of the staked ETH are on validators that use Geth. If those validators were to finalize an invalid chain, over 90% of their staked ETH will be destroyed by the inactivity leak mechanism until other validators have the required 2/3 majority. 90% of 84% is over 21M ETH (~$50B) destroyed.

Why would over 80% of users be penalised in this instance? No one is asking for geth to shut down. I think people would even be a lot more comfortable with geth close to but not above 66%, which is the threshold after which an invalid block could
be finalised by a buggy client

Creator of original ETH gas station many years ago 

I don't think you're understanding my point. Everyday users don't solo-stake, they stake via third-party services like Coinbase, Binance, and possibly Lido.

Do I believe these service providers need to get their shit together? Yes. Is it fair to blame and punish ordinary users for what these big guys are doing? No

I’ve used both nethermind and geth.  They’re both about the same for use by everyday users.  There is no objective reason why so many people use geth.