No, that's just lame (and Wikipedia isn't always right). Ask any scene coder and they'll tell you they're coding in assembler, not "assembly".
If Agner Fog has no problem calling it 'assembly'[0], then neither do I.
Because they've written more applications in assembler than anyone else in the history of computing. Look at Aminet, and csdb.dk, and that's just Amiga and C=64, I haven't even included the Spectrum, Amstrad CPC, Atari ST and PC.
Absolute unbridled nonsense.
They've been using that name since 1992, and if those guys aren't "scene coders" then I've never seen one.
I never went back in the day, but pretty sure I didn't primarily interpret it as "ooh, a congregation of people".