I've been using this website for at least a decade, so maybe I'm just used to it, but the clove hitch formed with loops is very easy to follow for me. All the animations are super clear, which is why I use the site. It's consistently easier to follow than most YouTube videos.
I'm not sayings hard to follow, but when you have been shown a very easy way to do a clove hitch, the key being how to hold the rope and your hands, ie the limited movements you have to go through to do a clove hitch, you can do them in your sleep.
We used them as the starter knot before lashing someone down on a stretcher before carrying them out of a disaster zone. It was quite fun, putting the stretcher up on its end or turning it upside down to demonstrate how well protected someone is once lashed to a stretcher.
I like the effort and organisation of the website though, so I'm not knocking it, just pointing out it could be improved with video's that show 1st and 3rd person perspective of hands tying knots. That way, when abseiling, rock climbing or doing other Fred Dibnah style activities, you know if your knots have been tied properly or not.
So much trust is placed on people who run these activities, its nice to have piece of mind, but its probably one of the reasons why the carabiner was invented.