Ok, I'll try to debunk it
We are seeing heavily edited footage. Why so short?
There are two sections, one of approaching 'orbs', one of closeups of some plasma-like substance. Without the first section, the second one would be much less spectacular. The first section makes us consider something UFO-ish and sets the tone for the second section.
I think the first section has some glare behind the trailing light, something that makes me think the flying orbs could be projected on glass. If the background is shot in focus and the foreground (glassplate) is blurry, it could make more mondane lightsources (e.g. sooty candles) look like 'craft' in the reflection.
The second section is less spectacular imo, it looks more like an experiment of some kind. (Or, it looks like Ray Stanford's red blobs!) It could be molten glass held on a dark stick, wagging it back and forth and up and down in slight slo-mo makes the hot glass drip, or act like molten lava, - or like plasma! Or, it could be other heated and molten materials.
Debunked?