I would say it appears correct observation.
There was link to that NOR NOISE documentary on one topic recently. There one guy explains his view on what is "experimental sound". In nutshell, I think his view could be: Throwing things together without fully knowing what will emerge. Man in the interview concluded that his work is NOT experimental. That he is fully aware what he is doing and what he wants to achieve and how.
But his definition of experimental could mean noise session, where one keeps feeding energy and abrupt changes, basically being conscious what is doing, but always on border that it might go to slightly wrong direction as there is unpredictable elements.
This is very much opposed to situation, where noise is generated on screen, where every change of volume, panning, cross-mix or even effect might be handled by carefully adjusted envelopes, what can be re-re-re-adjusted until it is 100% perfection. But then question might come: Is it? Is it perfect noise, if it is a bit too nice, a bit too clean, a bit too predictable and tidy. Unable to capture moment where something is right there on edge of getting slightly out of hand, but manages to keep its momentum till end of release. In such cases unexpected things tend to emerge.
Most works I have done in recent years is basically live-in-studio recordings, where few details are thrown afterwards. Recording main core of works as simple stereo-track will mean individual elements can't be "corrected" as they are inside-the-noise so to say. For some it might appear as curse, not be able to "correct" some flaws, but this is good way to keep spontaneous elements and unexpected things even in complex noise.