As per the article:
Conclusions
Through the BTC April Fools day rally, we come to several observations about the real quality of exchanges in the current crypto market that we may not able to observe so clearly in normal days.
Some exchanges have much more resilient liquidity than its counterpart under crisis (e.g. Binance vs Gdax). In addition, the different ratio of trading-volume hike reveals fake volume from several exchanges (Okex, Huobi, Hitbtc). Lastly, this BTC price surge incidence has long-lasting repercussion towards market makers, who are very reluctant to place orders back near the top of the orderbooks.
Obviously, those exchange wiht higher liquidity can really withstand that rally like Binance and it's only proved why they are the number exchanges right now. As compare to those crypto exchanges with fake volumes mentioned in the article. And who really trade on those exchanges btw? They have been identified already so I don't know why someone will go and trade on them specially during the market surge we have seen last week. We don't need to be rocket scientist here, there's a lot of data to swallow on that article but I do believed that just common sense will tell us which exchanges can hold and which exchange can't.