In hindsight I can see how one could read it that way. It was poorly phrased. Sometimes it's hard to see your own text as others will see it :-)
It was certainly not my aim to slight the talent of people originating from anywhere else; I merely wanted to point out that over time the US actively sucks up external talent, and that since there is very little counterbalancing flow out of the US you end up with an unbalanced talent distribution. The quip about the single-instance MySQL was not at all to suggest that this is the only thing (or the typical thing) people outside the US do; it was that this kind of expertise is much less actively recruited into the US and so the distribution of talent is much more uniform across the world.
It was certainly not my aim to slight the talent of people originating from anywhere else; I merely wanted to point out that over time the US actively sucks up external talent, and that since there is very little counterbalancing flow out of the US you end up with an unbalanced talent distribution. The quip about the single-instance MySQL was not at all to suggest that this is the only thing (or the typical thing) people outside the US do; it was that this kind of expertise is much less actively recruited into the US and so the distribution of talent is much more uniform across the world.