I guess I am naive - I didn't realize mid-fi was a thing. And apparently it's potentially an insult.
I view hifi and audiophile as a label to be whatever the speaker wants it to be.
If it's about listening to music and music reproduction it's hifi and someone has a little audiophile streak in them.
One of my friends won't bring his kids to my house for fear they'll break something. And he enjoys music and the hi girls he put in his entertainment room. Granted it's a different price point but the enjoyment and sharing of the experience is all the same.