It hasn't yet reached critical mass, not like e.g. "reticent" being used to mean "reluctant", but: everybody? Please don't use "aftermath" to mean simply "stuff that comes after something else". Chernobyl had an "aftermath"; winning a gold medal? Not so much.

(I realize that these usage quibbles are among my least popular postings, but who can teach a bird not to sing, or in this case a damaged hornet in a jelly jar not to buzz impotently against the Masonry?)