Yeah but Matt Levine is wrong.
1) Index funds and ETFs are highly active.
They're just low-cost due to largely algorithmic decisions but at all of the edge cases manual _active_ decisions are made.
IIRC, in this podcast Vanguard goes into detail about all of the active decisions they do [1]. It's long because uh, they do a lot.
2) You're in the index fund game because "you liked that index". There are literally thousands of ETFs. Saying "you want the market" is just wrong, you wanted a specific slice of the market and if the ETF changes the slice under you then that feels like a bait and switch.
[1]: https://www.youtube.com/watch?v=hQVz_VGJNnY