Editorial: allow hosts to create ordinary global objects

There doesn't seem to be a reason for this hook to only allow *exotic* objects.

spec.html

@@ -11794,7 +11794,7 @@ <h1>InitializeHostDefinedRealm ( ): either a normal completion containing ~unuse
         1. Set the Realm of _newContext_ to _realm_.
         1. Set the ScriptOrModule of _newContext_ to *null*.
         1. Push _newContext_ onto the execution context stack; _newContext_ is now the running execution context.
-        1. If the host requires use of an exotic object to serve as _realm_'s global object, then
+        1. If the host requires use of a specific object to serve as _realm_'s global object, then
           1. Let _global_ be such an object created in a host-defined manner.
         1. Else,
           1. Let _global_ be OrdinaryObjectCreate(_realm_.[[Intrinsics]].[[%Object.prototype%]]).