Honestly, the scientific establishment would do better by sticking to science.
A bottleneck of two, or a first pair at our origin older than 500,000 years, is possible.
I don’t think the study can claim all the things it does based on the evidence they have.
C. John Collins points out that Venema’s use of “language evolution” is a poor analogy for (his form of) biological evolution.
“TE thus represents a very deep sink or depression in the landscape of theological and scientific opinion.”