I have to strongly disagree. Obviously he can demolish any of the lower-ranked players even if he had a broken ankle. But he is probably not going deep at RG with an average first serve speed of 160 km/100 MPH. It's not just the service speed, his entire service motion was different and he wasn't landing on his feet the way he normally does. Even someone like Humbert or Mannarino would punish such weak serving. Of course, Nadal has such an aura on clay he might be able to serve WTA level and opponents will choke against him anyway.
Also problematic is Rafa's inability to be stretched wide and retrieve balls he used to get to easily. Age has no mercy. I actually want to see him win RG and today was just his first step. Hopefully he will show more against Demon.