synchronized classes and shared

[Loara]

When dealing with `shared` variables according to the official 
documentation only atomic operations are allowed on them. But 
since `synchronized` classes can be accessed only by one thread 
at time it's reasonable to allow accessing its members even 
inside `shared` context, indeed the compiler allows it at least 
for small codes like the following:
```d
synchronized class A{
   private:
     int a;
   public:
     this() {
       a = 1;
     }

     int getA() pure{
       return a;
     }
}

int main(){
   shared A c = new A();
   writeln(c.getA());
   return 0;
}
```

So I ask why was this feature not added in the official 
documentation?