"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. We had known about SwiftNIO before the first line of Vapor 3 code was even written."
And in any case, even if the server group was blindsided it's not representative of a general tendency, as there are a very active features discussions e.g. in https://forums.swift.org/c/evolution with the community and public members involved and shaping changes.