This is a bad take. The short selling rules are SEC made and country's wide regardless of exchange. Nothing about this exchange can do away with SEC rules.
This is an exchange created by a bunch of hedge funds/market makers(side note these companies are so big they don't fit one definition as they do everything).
These companies make more money as more trades happen so adding another exchange to trade on makes them more money.
It also allows them to break into the exchange market, previously they had ATS's(dark pools as some people know them as) but no lit exchanges.
Now they have an actual listing exchange so that provides them another way to make money via corporate fees for listing and the exchange portion of trading fees.
And your reaction is that it will be legitimate uses?