No, he's saying they are probably pricing themselves out of the global talent pool, by only being competitive in the cheapest countries.
It is generally the case that said exceptional talent has already immigrated to HCoL US areas like SF/NYC, or that there are immigration/timezone restrictions preventing them from being hired by companies. It is very rare that someone who is talented can't get hired for a rate that they are worth.
You are assuming that all people with exceptional talent value money over being near friends and family.
This is one of the most discriminatory posts I have ever read in this site and that's saying something.
There’s nothing discriminatory about it. The comment isn’t saying non-whites or non-US workers are dumb or untalented; it’s saying that most of the more talented ones have relocated (emigrated) already.
It's implicitly saying that anyone in a low cost of living area must be less talented, because if they were talented then they would have emigrated.
This makes as much sense as saying all the nice Americans are the ones who decided to leave the US. But somehow that would be outrageous.
You are assuming that people with exceptional talent want to live in HCoL areas. Migration data over the last two years suggests that your opinion has holes.