Lol, we can't just draw conclusion here, just because it's friday the 13th means that the price of bitcoin is going to be that low, coincidence.
Other people also say that the Lunar Chinese New Year will have a positive effect on the price. Every year we hear that, but it's not always the case, it also means that there are no correlation whatsoever. You can trade - buy/sell whenever you want.
We shouldn't really be surprised anymore about this kind of people who would connect everything to the Bitcoin price maybe if some celebrity dies and crypto price happens to move in some way they would also connect it to the death of that celebrity.
All I am saying is no matter what event it is they would use it to create something and connect or ask if it is connected to the price movement of crypto.