Graffiti typically does not meet eligibility criteria, and we have seen many posts on the forum about accepted Wayspots featuring graffiti being removed. See this clarification:
At the coordinates you posted, I see this on Street View:
If that was the Wayspot, then it appears to me that the removal was correct. If it was something else, then you should post a photo showing the graffiti currently exists and meets the clarification standard for unique art, not vandalism.