Here's the last nearly 40 years worth of that curve, with recessions marked for convenience: https://fred.stlouisfed.org/series/T10Y3M (use the range selector below the graph to see everything)
The specific part that just inverted has inverted before every recession since 1957 (9 times) and given one false alarm in 1965
According to the article, there has only been one false positive, back in 1965. Not sure how many inversions have occurred.
Yes, it often inverts before recessions, but most recessions do not accompany financial crises. The business cycle is normal; financial crises are (or should be) abnormal.