I agree wholeheartedly and going back further there's a pattern forming to back you up:
1. FOC = Titan Metroplex (stand alone)
2. CW = Titan Devastator (combiner)
3. TR = Titan Trypticon and titan Fortress Maximus* (stand alones)
4. POTP = Titan Predaking (combiner)
*Note that Fortress Maximus is not that big a departure from titan Metroplex in terms of fundamentals.