Well, unlike gTLDs, ICANN have no control over what ccTLD registries do. Personally, I much prefer dealing with ccTLD registries who behave like gTLD registries (.me, .co, &c.), but those are few and far between.
Smaller ccTLDs are unlikely to use this though: it makes more sense for them to contract out the technical side of things than run their own, with .cm being an example of a registry that shouldn't run their own infrastructure.