Any non-musician engineers here??

Since you put it that way, another way to look at it is:

Anyone who ‘plays’ ANY sample based device could be considered a DJ,

Why?

Because instead of actually making sounds, the player is really
just playing back recordings.
Tiny sampled recordings/loops etc yes! But recordings none the less.

(Me thinks this topic should really be its own thread) Perhaps a mod will move it).
TIA

{‘-’}