Yeah dinosaurs would be better then some fuel/rare materials wasting project that would get owned by allied bombers or just break, or not being able to move because there wasn't roads or bridges strong enough (yeah i know there was the snorkel for going underwater but it surely wasn't the safest and most pratical thing to do).
Hell, they had crippling mobility issues even with kingtigers, those p.1000 wouldn't ever reached the frontlines. Ofc war dinosaurs are not feasible so it's an useless discussion, and this game seems mental, but who knows maybe is funny