I've heard this sort of meme description style proselytized over and over, and have tried it, but I can't think of a single time I've ever genuinely been in a position in which I had literally any control over either the decision that was made to do it, or insight into the outcome if it existed, and probably wouldn't believe anyone who told me differently. These stories seem to me like just being in a unique fantasy position in some startup where you happen to be given more autonomy and individually refactor some core thing end-to-end with analysis that ties your lucky results directly to sales.

A much more real and honest description would simply be "Upgraded 20 year old wordpress and ensured no data loss or breaking changes took place, which helped improve the editorial experience for our writers"