I would give the video the benefit of doubt, as far as "general overview" is concerned. The creators of these videos do generally not make them up from whole cloth, but refer to available history / map material. However, there are many different accounts and interpretations of historic material, and an animated map can only show one of those.
Data might be wholly or partially incorrect in the source, the selection of one source over the other can be iffy, or the editor of the animation might have made a mistake in the creation. Newer findings might have outdated the ones the animation was based on.
Especially for early history, you should assume that borders shown and years given are approximations, not "correct" in the modern sense. (Personally, when editing such a video I'd probably prefer "airbrushed" coloring instead of the high-contrast borders this editor used, for early-history "borders", to reflect the uncertainties involved.)
Also, and again especially for early history, the map shows kingdoms, empires, and people that we know of. There are people living outside those colored regions, and it irks me a bit to have them "not represented" at all, as if they weren't important or did not create heritages of their own, even if forgotten today.
So... for getting an overview, and putting things into perspective, time and space wise, this video (and others like it, which might be even better) are a good thing. They are a starting point, to give you the right frame of mind and perhaps an idea of what to look for.
But of course they do not, cannot, and are not intended to, replace actual research on an area and time frame that piques your interest.