The dhaba scene was only a build up for Sathya's past and Sai to connect to it later. Sathya has already thrown that line of judging people on Sai. So this seems to be consciously done before the case as she will start to ease upto Sathya after the case. And then try to see him in better light and understand the guy behind that mask.
The case was meant for a few things. To start P's downfall, and for the family to start disliking her and see her true colors. V to get more inclined in his pursuit of Sai. And Sathya-Sai story to kickstart.
Itna sab kuch simultaneously achive karna tha. Aur ek hi episode mein. Tough task. And end result a rushed up episode.
Good part was P losing everywhere (except Vinu) and Sathya finally warming up