TL;DR: "So for instance in U.S. equities the funds got annual returns of 8.24 percent for 10 years, versus annual fees for U.S. equities of about 0.08 percent. So the funds got 99 percent of the returns on their investment, and the managers got 1 percent of those returns. Again, paying managers 1 percent of the returns they generate does not seem particularly egregious to me, though I suppose there's an argument the…
I disagree with #2. I'm an individual investor. I can get into vanguard index funds for around a 0.05 fee, depending on the fund. The author estimates that the NYC pensions were paying a roughly 0.25 fee on their funds. That's a $10 billion customer paying 5X in fees what a small investor like me pays. I think that's insane.
Where does it say that? I just did search on the web page and the string "25" doesn't appear anywhere.
Perhaps you're rounding up from this number: "total fees of about 0.24 percent a year on all assets, including private assets."
If you are, you're not comparing like with like. The closest equivalent in the article to your index funds is this: "The fees that NYCERS pays for U.S. domestic public equities are about 0.08 percent a year".
So we're now comparing 0.05% for an index fund vs 0.08% for "US domestic public equities", which almost certainly includes actively-managed funds, which incur higher fees than an index fund (e.g. Vanguard's average active fund expense ratio is 0.27%[1] vs 0.13% for index funds[2]), which would explain the 0.03% difference.
1: https://investor.vanguard.com/mutual-funds/actively-managed