Each process is composed of numerous moments. It is the moment which typically gets frozen in camera pictures and individual memory. It is priceless to stop Time. Technology has long allowed us to do that.
Not to say that the process or the ‘films/videos’ aren’t memorable’; it’s just that, in them, the details/the ‘basic facts’ tend to get lost and the eye is distracted by many more elements.
For centuries, permanence has been a recurring human desire and obsession. What stands still? What can catch the reality of the moment and ‘fix it’ so the eye can see it and the mind can fathom and appreciate it quite apart from the ongoing, never-ending flow of life and Time.
It is also in the frozen moment or work of art that one can linger with and savour the always-present factor of context. Everyone, everything, every action, decision, or choice is ultimately contextualized/within a context. I believe we can see, understand, and appreciate contexts better in that which the subject is still, frozen, isolated, and recorded as such. (In that sense, more truth.)
And perhaps, there may also be some truth to the idea that it is always much harder to ‘hit–i.e. fathom–a moving target’.