Gone is the dynamic nature of ObjC; it has instead been replaced by a rigid, generic based type system. I know the world of C++, Java, and C# programmers have rejoiced. Myself, having worked in Visual Studio building tools for .NET and Windows developers for many years and leaving that for the world of Cocoa and ObjC, I am greatly saddened by this turn of events.
Objective-C without the C is a worthwhile goal, but I don’t think anyone was asking for Objective-C without the Smalltalk. I’m still learning and planning to use Swift, but I think dividing into pro-Swift and anti-Swift crowds is probably too narrow of a view. Both languages are better and worse in different ways. It’s going to be up to us to learn those differences.