If they have a good exchange platform, it will attract a lot of investors to participate but in order to do this, XCT needs to have an average trading volume of over 1 million USD to be able to compete with other exchanges. This project will be completed soon and they will need a lot of time to do so so please wait. I personally believe that the value of XCT will soon increase again in the near future and you should give them one more chance to do so.
The basic principle is that you cannot let token prices dumped like that (more than 100 times compare with IEO price), it make the project seem worthless. You can see any current successful exchanges, they try many way to keep their native token's price safe. Even CZ had to spend his own money to buy BNB to keep its price from falling too much after the ICO.
For Binance, they have big money and spending money to invest in IEO is only a small problem for big exchanges. I think XCT needs to do this in order to attract more new investors but maybe this project cannot be done because this project does not have many investors so buying XCT will not help the investor at all. Maybe now the value is very low but if you invest you will have a lot of difficulties in liquidity so I do not encourage you to join this project.