Good quality video. By that I mean sound and visual clarity are decent.
The rest is (yawn .....)
All that effort; what does it prove? It's educational for someone that does not realize that those topics (metal vs fiber; BP location; media density; etc) just don't make a hoot of difference in real world protection for any normal OFCI.
Bench racing filters, quite literally, on the bench.
The value to this video is in the absence of disparity of results. No matter the construction, all these filters return good results overall. Which means the nuance exhibited and pointed out are essentially moot. Mostly because filter features and efficiency don't really control wear rates as much as people think.