Many thanks. Very good piece.
The current market turbulences (understatement!) are likely to have an impact on the ‘buy the market’ mentality you are referring to.
As for turnover, the ratio is likely to differ depending on the type of funds one is talking about (eg full equities vs multi-assets).
On a more general note, I would say that performance should not be limited to alpha generation. A well performing actively managed fund is one that meets its objectives as properly disclosed to investors (eg income generation, low volatility, long term appreciation, ESG, etc.).

High volatility, under-researched stocks, low interest rate environment, etc, offer active managers opportunities to prove their worth.