We have a number of excellent video reviewers on EF who make video reviewing look easy, but it's definitely not easier than text reviewing.
With a video, I think it's more difficult to select what's most important to discuss. There are, for example, video reviews that spend 2-5 solid minutes discussing the packaging. As much as packaging is worth mentioning, clearly dedicating several minutes to the subject is inappropriate (especially when your audience can't easily skip over it!). Not sure why videos seem to encourage this problem more than text, though.