Making a point of describing this gear as semi pro (as opposed to, I guess, full pro) suggests to me a need to put something, either the equipment, the people that use it, or maybe both, in its place, that is, to belittle.
As I explained above, that was not my point.
"Pro" videographer are not less "pro" than professional audio engineers or professional carpenters.
They just use different "Pro" tools.
And I put not hierarchy in it.
This is an (entry level) accessory to record on-the-fly audio, usually used to attach sound to a video.
I don't see what's wrong with this definition.
As someone else described, real pro audio hardware (hardware that a pro sound engineer would use to earn a living) is usually not adapted to this purpose.
I just try to clarify the category this tool belongs to.
The problem is that "Pro" has become more a marketing word than anything.