Volume traded on CME futures has been insignificant until about two weeks ago [1]. Click on the chart icon and look at the volume bar graph. Each contract is worth 5 BTC. Looks like they are doing about 10,000 BTC per day now. So I don't agree with this article at all.

CBOE bitcoin futures is much smaller, but they are also doing about 2500 BTC per day [2].

[1] http://www.cmegroup.com/trading/equity-index/us-index/bitcoi...

[2] https://markets.cboe.com/us/futures/market_statistics/daily/