Let's look at it from the point of view of the three players. Where would Rafa prefer Thiem to be? In Novak's half. Where would Thiem prefer that he be placed? In Novak's half...... 2/3 prefer this scenario and that is what a balanced draw would be like if we were to go by clay performances in the recent years.
I have no idea why people complain about the draw at RG. That is the only major where it does not matter. If fit and healthy, Nadal will always be the favourite, even if you gave him the draw from hell.
Fair enough. That way the second best clay-courter in the recent years, Thiem, will be playing the third best clay-courter, Djokovic, if they both get to the semifinal, and the winner of the two will be playing the GOAT clay-courter in the final.