This is what am guessing though and I shouldn't be criticised since we're in a free world in which nothing is free.
I mean when China made the regulation the price dropped right, so during that period you could buy more bitcoins at a lower price then hopefully it would pick up.
So maybe if China lifts the restrictions then the price can rise faster.
When China made the ban on ICOs and later on Bitcoin exchanges, the market reacted due to fear of the unknown since China at that time was still a major player in the Bitcoin market. This is just a natural reaction from the market. Traders as well as speculators know that people would be reacting negatively to the news...that is why the value of Bitcoin suffered or got into the dip. It did not however made Bitcoin collapsed that why when there is a dip there would be many who would buy the coin because they are taking advantage of the opportunity. This is just a natural cycle for Bitcoin and there is nothing new here.
Now, if you are trying to posit the idea that China intentionally ban the ICOs and the Bitcoin exchanges so that the elites can buy more Bitcoin then that is just another conspiracy theory and certainly if you believe that then you don't really grasp the mentality and mindset of the Chinese government. The Chinese government has its own agenda and for now Bitcoin is not a part of that...in fact they are introducing their own cryptocurrency right now which they can control anytime unlike Bitcoin.
And when the price of Bitcoin dip it is not limiting the opportunity to buy more Bitcoin to the elites as the market is open to all as long as you have the money to buy.