780,000-Year-Old Discovery Reveals That Early Humans Thrived on a Plant-Based Diet

This article is arguing far beyond what the research showed:

yielded extensive archaeological evidence, including more than 20 layers of human occupation, fossilized animal bones, and preserved plant remains like seeds and fruits.

It showed we ate what was available. This isn't new. We've always been classified as omnivores.

Actually monkeys barely eat meat and they derived from mice which never eat meat so go back far enough and eventually you'll see we didn't start out as omnivores.