I took a look and it definitely has taken a ridiculously broad definition, even gender doesn't need to be involved.
From wikipedia:
I stand by my feeling that word really loses any meaning when it can be applied to anything with just about any gender involved as long as it's a man doing the condescending action.In its original use, mansplaining differed from other forms of condescension in that it is rooted in the sexist assumption that a man is likely to be more knowledgeable than a woman.[7] However, it has come to be used more broadly, often applied when a man takes a condescending tone in an explanation to anyone, regardless of the age or gender of the intended recipients: a "man 'splaining" can be delivered to any audience.[2] In 2010 it was named by the New York Times as one of its "Words of the Year".[8]
Seems to hold more weight in its original form when it specifically dealt with sexism.
I am not doing this to be an asshole or derail anything either I just think it seems out-of-place in non-gender related discussion.