Short answer: nope!
Long answer: No, not all schools review according to complete date (though there is no transparency which ones these are). You could simply be a different pile and they're making their way towards you. I wouldn't start worrying about silent Rs or future Rs until March or April if you hadn't heard anything by then.
N=1, but I was complete mid- August to late Sept, and have only heard back from 2 schools (both Rs). Hang in there, you got this!
This is a LONG process and we still have a ways to go!