The article provides a refreshing balance to the typical media piece that stresses a "dizzying climb" to the highest high they can cherry pick and an "abrupt plunge" to the lowest low they can find.
The gimmick of such media pieces is to depict time bounded by their hand-picked shock-value data points. Using year-over-year end points eliminates such trickery but does not itself speak to the issue of volatility within the year.
The author reminds readers that the
BTC price was at its extreme values for a matter of minutes or hours over the course of a year. Hugely important if you happened to be trading then, but effectively irrelevant otherwise. The typical media piece urges the reader to imagine that such wild price swings are always in play. Be afraid, be very afraid.
Like the author, I find it useful to look at data using different levels of granularity. Each "lens" carries useful information and no single view carries the whole story.
As always, you have to figure out what you're looking at and what its value is to you. Good article, in any case.