The more common initialism/abbreviation is MILC, or mirrorless interchangeable-lens camera.
I'm sad that Electronic Viewfinder, Interchangeable Lens (EVIL) didn't catch on
Ooh that's funny. And I say that as an EVF lover
Wrong words are commonplace in English, perhaps my favourite being “modern art” referring to art from 100 years ago. Long story short: don’t worry about it.