So, it's not as much about entertainment as it is about a whole slew of questions being answered that have been around for a while. Since the Clone Wars and Rebels for some of them. Specifically:
Ahsoka during the Rebellion and if she ever came into contact with Luke in the aftermath of ROTJ. Being one of the few surviving Light Side users (she's not a Jedi any longer as she's made that clear in Clone Wars S7, Rebels S2 and the Mandalorian S2) fans wondered if she ever came into contact with Luke. She made a token appearance in the last episode of Rebels which was, timeline wise, right after ROTJ. So, everyone knew she survived, but exactly what was she doing. So, still unanswered questions about specifically what she was doing during Ep IV-VI (probably helping the Rebellion as that's where she was during Rebels), but since there were so few Force users in that aftermath, it would have been hard for them not to have detected each other.
So, her and Luke meeting up answered a HUGE question on the mind of rabid fans as to if they met and what would happen. Plus, they really are setting up her series due out relatively soon. She's hunting for Thrawn and in turn, probably hunting for Ezra Bridger. (yet another unanswered question from Rebels... Filoni is a genius)
Not even going to get into the Ezra theories and what happened to him after Rebels.
The Grogu scene is setting up the Mandalorian S3... maybe. Not entirely positive on that, but the choice he has to make and Luke making him decide is opening up a LOT of questions. Did Grogu stick around and get slaughtered when Kylo goes all temper tantrum and kills all the Jedi students? Does he go back to Mando? Again, they set that up very nicely with fans saying "Okay, and...!"
The gunfight scene was one of those moments where you had yet another character going all the way back to the Clone Wars coming to live action. Cad Bane disappeared for a long time and his status was one of those that people tended to wonder about. But furthermore, he certainly was the JR Ewing of the Star Wars universe. You hated his character, but you loved the depth he brought. Now, to bring him to live action? There's possibly closure coming in yet another fan favorite character that they left hanging in Clone Wars and Bad Batch.
It just so happened he shot another "fan favorite" when he dueled with Cobb Vanth. For only being in one episode, that character really was taken in by SW fans. So, again, the drama aspect of one of the more despised villains of Star Wars shooting (maybe killing) one of the characters the fans like? Just makes you hate him more.