What he is saying in the interview may be true for him, but certainly not for the working group ("I've seen a surprising amount of people thinking that the server-side Swift community or the Swift Server working group was somehow blind-sided by SwiftNIO. That couldn't be farther from the truth").
As a matter of fact the working group was blind sided by SwiftNIO. Which is perfectly fine, that is how Apple usually operates and the outcome is quite nice. But no one should suggest something different ;-)
I think it is fair to say that this working group is now dead and replaced by the NIO effort (which is IMO a good thing). Maybe it should really get removed from the Swift.org website / GH (or replaced with a link to NIO). It should definitely get updated somehow. (@tkremenek @johannesweiss)