Is Windows Workflow Foundation missing generics, too

A while ago I've blogged about missing generics in Windows Presentation Framework. Now I took a look at Windows Workflow Foundation and I immediately bumped over an object (ParameterDeclaration.Value) that should be a generic instead. There appears to be a general shortage of generics in WinFX. Not sure why. Perhaps it has something to do with the fact that it is ParameterDeclaration is editable in designer and designer doesn't deal with generics at all. Ok, later on I saw signs of generics here and there. It would be nice if designer learns what to do with generic parameters though.