Horticulture is usually defined by domestication, so we're pretty darn confident that early human subsistence strategies didn't rely on it based on their presum

Horticulture is usually defined by domestication, so we're pretty darn confident that early human subsistence strategies didn't rely on it based on their presumed lack of time machines and the fact that there's so much time between the evolution of AMHs and observable domestication. You can double or triple the known dates and still have 90%+ of human history left over. In a broader sense, pretty much everyone in the field would say that there's a huge amount of overlap in those terms and trying to pigeonhole a particular society into one or the other over a long period of time is more frustrating than fruitful. Human subsistence strategies were hugely diverse and we only have a small glimpse into that diversity with ethnographic analogy and the material record. Disclaimer: I know one of the authors, but wasn't involved with the research at all