Yes. I saw that TED talk about desertification being reversed by ruminants, and while it got a lot of critics, it had some pretty good points. But, those ruminants would be better off not being beef cattle in terms of biodiversity. Also, if they were beef cattle due to the lack of anything better, hopefully it would be short term, and if you're making a case for use of marginal land, they really shouldn't be finished in a feed lot, since that is using a lot of cropland to support that.

... and only some places would (possibly) benefit from that.