Some modernist published a picture of a silly-looking woman throwing a whole bucket of water on her sleeping husband to wake him up for Salaat.

Answer

While the Hadith is correct, there is no mention of a 'bucket'. The Hadith clearly mentions 'sprinkling' some water, not pouring a bucket of water. If the husband is a human being, then the wife should sprinkle a few drops of water on his face to wake him up for Salaat. He will appreciate it and be thankful to her. But, if he is an animal, then it will not be permissible for her to sprinkle even a few drops of water.

Furthermore, the picture is Haraam, and the comical depiction of the Hadith and Allah's Name juxtaposed with the silly, haraam picture makes a mockery of the Hadith and of Allah's Name. The modernist moron miscreant is guilty of kufr.