In our Watchlist API query (https://test.wikipedia.org/w/api.php?action=query&format=json&list=watchlist&formatversion=2&wlnamespace=0&wllimit=100&wlexcludeuser=Samwalton9%20(WMF)&wlprop=ids%7Ctitle%7Cflags%7Coresscores%7Cparsedcomment%7Cuser%7Csizes%7Ctimestamp%7Ctags&wlshow=!bot%7Crevertrisklanguageagnostic&wltype=edit) we're filtering for revertrisklanguageagnostic, but that wasn't the intention in the original ticket (T419838).
We want any watched-page changes, not just high revert risk ones. We should just remove this filter from the query.