As stated previously, the Harfoots are the weakest written characters and some of the poorest actors are in there, they just feel like they’ve been shoved in this show to pay homage to hobbits, they had no real part in the tale until the third age as well, but then again the show is doing a few things way earlier and some things way later than in the timeline.
As for the finale, lots going on, lots not getting explained, they’ll need to up the ante in the second season to really get this show focused, definitely think they needed to get a few more high level actors in the cast, it’s a very inexperienced cast at the top, and it shows at times, yeah the scripts aren’t great, but they don’t seem to have the Charles Dance/Sean Bean/Aiden Gillen/Jonathan Pryce/etc that GoT’s had whilst they blooded a lot of younger actors, even Dragons has renowned folk in key areas to do the same.
Again, still enjoying it, but to survive the negativity they need to up the game a bit, so much going on at the same time will be a huge strain for the next season.