The sound in the video had good compression pops, so it's not that. Again, take out the glow plug, put it in the igniter and see how brightly it glows. Red just isn't good enough, and the same goes for orange. You should have a bright orange to yellow glow in order for it to ignite the fuel.
When you put the glow plug back in, don't tighten it down but leave it where some of the compression can bleed off. The engine will spin faster and that might help it get going. As soon as it starts, tighten it down.