Sorry but I don't think that, Motec is a powerfull tool. You can cross several chart type if necessary. And it's still mostly less subjective than about people who have never driven the car in question. Even your video that shows a lack of grip is normal with cold tires and track with not enough rubber,is not enought for here, because it is not easy to understand everything that happens just looking. The data whose are extracted are more objective and more easily comparable to the reality before video and still before feelings.