It's an engaging book. It's also really, really rejected by historians from just about every possible angle. The AskHistorians subreddit has an entire "frequently asked questions" section dedicated to it:

https://old.reddit.com/r/AskHistorians/wiki/historians_views...

And don't let the reddit part fool you, AskHistorians is arguably one of the most high quality history forums out there, as the mods mercilessly enforce really, really strict rules that demands giving in-depth answers with sources. That page has lots of other in-depth answers on other popular "big history" books too, quite a sobering read honestly.