And how do you suppose these rules were originally introduced? Do you believe that the reasoning was particularly solid then, and is it directly applicable in the current situation?
Yes. These rules were introduced, because that's the purpose of pension funds. To invest in very long-term ideas and assets. That's their whole purpose.
I'm not sure if we're debating here about the purpose of pension funds, or their strategy of investing in index funds. The first one doesn't change, the second one, maybe.