Anyone care to explain to me why any of them even considered it? What's the specific upside from the perspective of an index provider? Seems to me like all it does when you bend the rules is erode trust, so whatever the upside is, it must be pretty significant since it comes at such a high cost to the credibility and trust placed in the applicable index and the market itself.
SpaceX got NASDAQ to change their rules so I guess people thought S&P might be similar. NASDAQ probably did it because they make money by the listing going to them rather than the NYSE.