Yes, that's true. I don't postulate that currently it wouldn't scale according to the number of players in the fellowship. In fact, what I understood from certain blogs, there should be no IG already with the group of 5 (but this information might be outdated; I have never had the chance to check this in game). What I am suggesting based on my own experiences with not so strong group, is simply to tone the scaling or the buff, so that it becomes weaker than it is now. Or that it is made optional instead of automatic.