According to Binance CEO - CZ, activity on Binance exchange is higher than in December 2017. According to PlanB that created stock-to-flow model, the bull run is here, his claim is based on the value of RSI that is currently on 64 points. And the last positive claim comes from Goldstein that said that Bitcoin already has value more than $100,000 because there are statistically more people that will hold BTC to this level. 
I don't think it would be possible for Benson or any single exchanger to single-handedly influence the cryptocurrency market, especially the price of Bitcoin. It can happen at any time in a joint effort of different exchangers.