The video is largely correct. They did gloss over that strong winds would cause Hovercraft operations to suspend, and sometimes those could last an entire day

The video is largely correct. They did gloss over that strong winds would cause Hovercraft operations to suspend, and sometimes those could last an entire day in the channel. So while they solved some early design defects, Hovercraft remain hurt by weather more than other ships, and cannot easily go around it like a real aircraft can. Plus they don't pay enough attention to the Eurotunnel. While a SR.N4 can cross slightly faster, the Eurotunnel is far more reliable, and can get you a lot closer to your final destination (i.e. the land parts). You also have to look at the entire turn-around time of both, as loading the 60 vehicles onto the SR.N4 was time-consuming, but I don't have the numbers in front of me (only first-hand experience, it was SLOW). If you're ever in the South of England pop down to Lee-on-Solent, where these and other hovercraft are at the Hovercraft Museum. While you're in the area you can still take Hovertravel over to the Isle of Wight, but I'd take the cat back, so you get a chance to ride the quirky former London Underground tube trains.