The orientation of the hotend on the platform is different in the video. Seems like the only effect is on the fan wire routing, but one should be picked and everything made consistent.
Also trim the wires sticking up from the heater.
Last paragraph is copied from earlier step, and so references a different wire.
Important! Each of the wires has the insulation at the end cut. Pull off the insulation and gently twist the strands for each wire before inserting. The video makes this clear. Note that the larger diameter wires (red & black) may feel like they're bottomed out when it is actually just the insulation caught on the side of the entryway--you may need to adjust them a bit to get the wires to go in further.
It appears that the plastic nut is removed--it looks like it in the video and photographs.
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