It seems that their business is not going very well in last days.
If this is the case, then why not just shut down the whole exchange? Why close doors on the market where most crypto trading volume is coming from?
The article clearly states that they want to establish (or re-establish) their presence globally first and I am guessing that the new company, Polo Digital Assets, Ltd., will follow what Binance did in having an exchange exclusive for the US market.