Herbalife has decades of profits from selling wannabe Herbalife distributors a dream of financial independence they'll never achieve though, which might be unethical but is a bit less likely to lose your pension fund money than a company accused of getting 73% of its earnings from a deal with a convicted fraudster...
Whenever someone says nowadays, they're highlighting recency bias. The goals of holding a broad market ETF are diversification leading to sleeping well over the long term (at least to me).