It's not. Under normal circumstances If it was done by Trump or anyone else not on the left, it would be, but anything that could be negative for Biden anyone on the left will be ignored or dismissed by the media, and only news junkies (who have likely already made up their minds on how they're voting) will be aware of stories like this.
Well, Trump is the unusual circumstance in my mind. In the current climate, Carlos Danger's transgressions would have been swept under the rug.