Is that what he is hinting? S&P is so ‘yesterday’ - he plans to create a new index for the future!!!
Ratings agencies are ripe for disruption. They did a terrible job during the lead up to the great financial crash, and are still doing a bad job now. Tesla's debt is still junk, while many companies with prime debt are likely to go bust in the next couple of years, effects of COVID-19 are still not being taken into account.
Indexes are the same, lack of predictability, secret membership and hidden agendas. Ripe for disruption.
So are stock markets themselves, with market makers, options, futures and hedge funds. They don't do a particularly good job of allowing people and institutions to invest in companies or allow companies to raise capital (why do investment banks need to be involved to place shares). Short termism, over-emphasis on on the next quarters results, encouragement to gamble, special access to some players (high frequency, pre & post markets), poor regulation. Again ripe for disruption.
Not saying Elon will take this on, he has so much on this plate it is unlikely, but someone probably will. I'll be surprised if these look the same in 10 years time.