This paper seems to be referencing the migration of Homo Erectus which occurred earlier and is generally agreed upon (though the specifics are still widely debated, thus the paper).
Multiregional Evolution posits that modern Humans evolved directly from these distributed pockets of Homo Erectus, while the competing Out of Africa theory suggests that anatomically modern humans evolved once in Africa and then spread to the rest of the world, outcompeting the prior hominoid species as they went.
My understanding is that the MRE hypothesis was largely discarded in favor of Out of Africa based on genetic data in the early 00s. Studies show that all humans share mitochondrial DNA (mtDNA), Y-chromosome DNA, and autosomal DNA ancestors which is not what you'd expect if humans evolved separately multiple times.
The big compromise of the model which has emerged in recent years is Out of Africa with Admixture. Basically saying that Homo Sapiens didn't just outcompete other local hominoid branches but interbred with them to a meaningful extent. This was originally not well supported but there's a growing body of work to support it and I believe the academic community is coming around. You see this most strongly with Neanderthals in Europe, for instance.
There's no compromise model. Admixture with archaic hominins is widely accepted these days, but it's simply a small asterisk on top of OOA for essentially everyone outside China (where MRE remains popular).
Multiregional Evolution posits that modern Humans evolved directly from these distributed pockets of Homo Erectus, while the competing Out of Africa theory suggests that anatomically modern humans evolved once in Africa and then spread to the rest of the world, outcompeting the prior hominoid species as they went.
My understanding is that the MRE hypothesis was largely discarded in favor of Out of Africa based on genetic data in the early 00s. Studies show that all humans share mitochondrial DNA (mtDNA), Y-chromosome DNA, and autosomal DNA ancestors which is not what you'd expect if humans evolved separately multiple times.
The big compromise of the model which has emerged in recent years is Out of Africa with Admixture. Basically saying that Homo Sapiens didn't just outcompete other local hominoid branches but interbred with them to a meaningful extent. This was originally not well supported but there's a growing body of work to support it and I believe the academic community is coming around. You see this most strongly with Neanderthals in Europe, for instance.