This is noise. If you start looking around for arbitrary financial timeseries that track one another over a short period, you will find spurious correlations. I especially appreciate the author's thesis about the cause:

Historically, the US dollar has served as a risk-averse asset, gaining value as traders pull out of other financial products during periods of uncertainty and doubt. Bitcoin seems to be following the same path.

Yes, bitcoin is definitely right up there behind USD as a low risk asset. Uh huh.