Agreed, I've been able to do this in every McDonalds in a half-dozen countries. My brother hated pickles and always got them removed, I don't know what McDonalds this guy goes to but he should really complain to head office about them for poor customer service because McDonald is much better with customers than this article is suggesting. I've had them substitute and switch almost everything at one point or another and in multiple different stores without a problem.
The only company I've known to be better is Wendy's who will do virtually anything you want to a burger.