I also think its a nice little detail that both the “Frog-Lady” and “Dr. Mandible” (as Peli called him) both appeared in the season 1 Tatooine episode, implying that there’s not much happening on Tatooine anymore.
I felt like Peli calling him Dr Mandible was a fun nod to the same sort of less-than-respectful attitude of Solo when he refers to C3PO as the professor. Peli isn’t exactly cheating him outright, but she is getting one over on him to win the game. She’s similar to Solo that way. She’d have to be to survive in that same harsh environment.
Speaking of which: I’m extremely happy that the show has restored Tatooine to its original version. There isn’t much happening there, just as there wasn’t when we first discovered it in 1977.