should isMoreListLikeThanMapLike return true for things implementing .iterator?

[justinbmeyer]

The following is both map-like and list-like:

var list = {};

	getSetReflections.setKeyValue(list,canSymbol.iterator,function(){
		return {
			i: 0,
			next: function(){
				if(this.i === 3) {
					return { value: undefined, done: true };
				}
				this.i++;

				return { value: (this.i-1)*2, done: false };
			}
		};
	});

I think anything that implements .iterator should be more list-like. Thoughts?