There is no bitcoin surge. The price just rose 10% for the last month. It is normal price fluctuation.
Read the article properly. Compared to stocks and other things Bitcoin has kept its value nicely while the other investments lost value significantly. I am sure these high profile investors will come to Bitcoin with their money stashes. It will happen.
The article talks about returns in the first week of the year. That isn't enough to get high profile investors to come running to Bitcoin.
Those guys are probably not convinced about Bitcoin's potential yet.