Ah ... got it. This is likely too high heat for our purposes

Would degrade the product quite a bit ...
Nope not at all. A liquid will never go much about it's boiling point in normal atmospheric conditions, for example you could boil water as much as you like and the water itself will never get hotter than 100 celcius*
That means the ethanol solution isn't going to get hot enough to damage the cannabinoids, no matter what method you use, unless you've boiled it dry and are just heating the oil.
That's why in the video he stops before all the ethanol is removed and switches to a gentler heating.
*Superheating can take it slightly over.