Thanks for the video.
I've seen where the MAF electrical connector wires have had insulation damage and even broken wires right at the molded connector. I've wondered why they would be damaged. They normally just sit there alone and pretty.
I have always removed the MAF electrical connector for my filter changes. I think that your video gives a clue for the wire damage. In the video at about the 1:15 and 3:00 mark it appears that the MAF connector wires are jammed against the body metal and kinked a bit. I would recommend removing the MAF electrical connector for a filter change to avoid that happening.
It does look like your air filter may have been unseated and allowing dirty air to bypass. Did you inspect and clean the MAF plastic grid? When a proper filter is doing its job the MAF should be basically white glove clean, or at least not much dirt being present.

vic