It would be good to post link to article, not just title of it:
www.ccn.com/uzbekistan-opens-doors-for-cryptocurrency-exchanges-with-tax-benefits/amp/I don't think it's important news. It's not likely that many exchanges will be interested to register their business in a country like Uzbekistan, especially when there are quite strict requirements from Uzbekistan government - big initial capital, KYC policy, servers in Uzbekistan. Mostly new exchanges will continue to register business in tax heaven countries as it already common, others will choose developped countries like UK, Germany, Japan and others.
P.S. this topic doesn't belongs to Beginners board, move it to Bitcoin discussion or exchanges.