It's nothing profound. A lot of frameworks (and individual developers) like to combine the form and url scopes into a single "event" object or something (ala your "attributes" example), but it doesn't really buy you much.
That said, naming a new object after an existing scope is misguided, and I'd recommend against it. What happens when you want something out of the attributes scope, not the attributes object?
You could always reference the object via variables.attributes.foo for explicitness, but that's a pain and a bit ugly. And of course, nothing stops you from accessing the attributes scope (scope priority would check attributes before variables.attributes), but then the person that has to read the code after you is more confused. It's essentially created a problem instead of solving one.