I was suspicious the absence of a severity filter was exaggerating the trend...
But then I found this:
https://craci.com/resources/CVE-publication-trends?sev=criti...
Trend for critical CVEs is actually worse, at roughly 25x that of 2020, compared to all CVEs which are roughly 5x compared to 2020.
loading story #50219045
Severities are not directly comparable. The CVSS docs leave the choice of the "vulnerable component" as an exercise for the reader. The choice of the "vulnerable component" is also not encoded in the score so a critical may be a critical in the context of a library scored against a theoretical (and bad) program or it could be scored on a single website with known mitigations.
I'll look to add some additional features to the site based on this feedback - thanks!