> it remains to be seen whether that’s even possible with a plant as complex as cannabis
Cannabis doesn't work like this. It has been tried and the end result was Sativex. It doesn't work as well as actual cannabis. It's like trying to replace coffee with caffeine. There's something like ~1000 compounds in coffee. The effects are not the same.
There's an entourage effect going on in cannabis that's extremely hard to replicate. Even buds on different parts of the same plant will have different profiles.
Also the sativa vs indica classification is almost completely meaningless nonsense these days. Does it have high THCV? Then maybe it's what was once called sativa. Was it an indica harvested before there were any amber trichomes? Maybe it has 'sativa' effects etc.