GameSetandMath, I agree with your 1st point insofar as Roland Garros is looking about as clear a shot to a Slam title for a great player as I've seen in recent years. There really are no clear challengers for Rafa, with Revamped Roger out, Novak and Andy struggling, Stan showing little signs of Beast Mode, and none of the young guys quite ready to be serious contenders for a Slam, or at least Roland Garros.
That said, there still are dangers and winning a Slam is never easy and you almost always have to face at least several very good players en route to a title (
almost, but not always). I for one would love to see a Thiem-Rafa re-match at RG. I still heavily favor Rafa, but I think it would be interesting. And there are a few other players who could make things difficult for Rafa: Stan is always dangerous, Zverev is brimming with confident, even Grigor might want to give it another shot. And ultimately whoever he faces in the final, it won't be Mariano Puerta.