Yup, the method listed extracts plant material into a tincture which you then consume. Period. That's what a tincture is.
It is not the first step of preparing an oil or something to vape. If oils, waxes, and chlorophyll come along, that's fine.
Leaving the material in contact with the alcohol for a few days ensures that more stuff gets extracted.
The same goes for the coconut oil infusion: you extract the plant material into the oil and then consume the oil that contains the plant material.
No offense meant - you are 100% correct about a tincture being a tincture.
Happy Thanksgiving Day to Canadians and others who may particpate today