This is a typical bullshit graph (see https://www.callingbullshit.org/): The y-axis is logarithmic to increase the appearance of a strong correlation.
Why does that make it bullshitty? Percentage changes could be correlated.
Could be yes. I‘m suspiscious though. No source and convenient.
Here‘s actually the source: https://www.lynalden.com/bitcoin-network-health/