An argument, I guess?
We have seen versions of these plot beats before, but now that we're two films into the new trilogy and perhaps have a better sense of its shape, it's easier to view the recasting and remixing of familiar plot beats as a motif that allows the filmmakers to explore the theme of the burden of destiny and dig into the nature of the Force. This is why I'm so curious to see where the next film goes, even though--as has been mentioned--it's possible it may not resolve into anything particularly novel or substantial. I'm assuming the broad narrative arc for this set of films was sketched out all at once, and the filmmakers are working toward a predetermined endpoint.
Yes, the filmmakers have chosen to make the middle trilogy's main characters central to this new one rather than delivering something wholly new. Despite the imperfect results, it's a sensible approach, and it's hard to argue that a series of films that did not directly connect with the middle trilogy would have been more enjoyable. It's even more difficult, if not impossible, to think that any new films would not have been measured against the previous six. So the filmmakers have decided to make that point of comparison a central element of the new trilogy's plot, which is as reasonable creative decision as any. The rest of it flows from there.
At a certain point, it becomes necessary to reckon with the films as they are rather than what you as a viewer want them to be. And even then, it's possible--and okay--to wind up with the same negative reaction.