(I hope you will not take this as an "aha, got you!" but a frank attempt at discussion.)
The criticism that
@MerricB have listed for this adventure (the factions/NPCs from the early game don't matter, the adventure is uninspiring), and which you agreed with (please, correct me if I misunderstood your post!), are criticisms that the Alexandrian review also had.
I also thought MerricB had a very good point about how an inspiring but flawed adventure* is worth rescuing, which is a way of thinking that seems to be shared by Alexander, given the
massive efforts he's given in reworking some of these adventures. And that's his final assessment - not worth fixing, better to homebrew the continuation of the campaign yourself.
*a great example of that I've done personally was the Lost Laboratory of Kwalish - it has several problems, but they are worth tackling given the pretty good material there is in there too.