What is wrong with this sine memorisation pattern?

Описание: You can buy the jacket from the video! Signed by Matt. Or not. You choose. (All money goes to charity. You don't have a choice about that.) https://www.ebay.co.uk/itm/363879463026

Here is the Geobebra file "Trigonometry Tracer" made by Ben Sparks:
https://www.geogebra.org/m/S2W46Thv
Do check out Ben’s channel:    / sparksmaths  

Katie "radians" Steckles is also on YouTube:    / katiesteckles  

And Becky Warren is best found on twitter:   / becky_k_warren  

This is the sort of ridiculous video I can make because I have an army of supporters on Patreon. Join in and be directly responsible for there being more silly maths videos in the world.   / standupmaths  

And fine, here is the link to the original reddit post. But no brigading it or the OP etc. If you visit the page, consider it like visiting a museum. Look, but don't touch.   / isnt_it_awesome_way_to_learn_the_values_to_be  

CORRECTIONS
Nothing yet. Let me know if you spot any mistakes!

Filming and editing by Alex Genn-Bash
Beard styling by Lucie Green
Shunning Drake played by Matt Parker
Embracing Drake played by Matt Parker
Music by Howard Carter
Design by Simon Wright and Adam Robinson
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