You can read “a little bit” (i.e. “not too much”) into it (it does indeed tell you about the out-of-the-box experience), but e.g. being able to know when a fallback model has been used means that in terms of pure accuracy, you might still be better off defaulting to Opus 5.5 and re-routing to Sonnet 5.5 yourself when you get the fallback.