Actually, I like the rankings for the PL games. Until they were just added, I had no idea just how much of an underdog I'll be in my new PL. But while the rankings are not exactly a statement of a team's real strength, they give a decent degree of magnitude, and I like it.
But I agree that there is little use for rankings in scrimmages since they are almost always for training minutes, they don't count for anything, and so showing rankings here is meaningless.
Don't ask what sort of Chunks they are, you probably don't want to know. Blowing Chunks since Season 4!