It's not the difficulty that bothers me. It's the fact that only RDM can clear it. This in turn simply means that the content is not properly optimized and that only RDM can circumvent that issue.

If no one else can see or understand this, I don't know what else to say except ask yourself and answer honestly if you think content--no matter it's diffculty--is proper if it can only be cleared by one job when it's actually supposed to be designed for all.