The sieves for water hash are not small enough to filter out the fungus. There's no saving wpm-riddled bud. There's no 'washing' it. You probably won't get sick or die smoking it, but you'll cough like crazy and it'll taste off.
The pictures aren't quite zoomed in enough. If you see individual trichomes and nothign coating it -- a net-like fibrous coating -- than all is well. google some images 'trichomes wpm marijuana' and i'm sure you'll be able to find some examples.
https://www.alchimiaweb.com/blogen/wp-content/uploads/2014/06/WEBO%C3%ADdio-y-Trips-Sala-Yohan-y-Raul_0018-910x607.jpg
https://www.
reddit.com/media
you can see it is a clear difference than seeing individual stalks of capitulated trichomes.