I think you have it backwards. Many (most?) funds underperform the market as a whole, showing they really don't know anything. ETFs that mirror indexes exist exactly because of this... their managers don't make trades based on their insight of the market, they are contractually obligated to mirror the index, period.

The article shows that at least some ETFs -- NASDAQ index funds -- will now be undermined by this SpaceX scam using those contractual obligations to extract money from ETF investors.