I think this was a solid, but a bit boring finale. I think it was strongest during the scenes where Reno was commanding. Everything else just dragged. Mostly because there are no stakes here. We know the Federation won't end, or Nus win, or anyone die. It is clear from the beginning. But then it drags.
The "trial" made no sense to me. You already have the federation hostage. Why would you need to put on a show? Nus was a bit of a hollow villain, and I hate it when shows/movies/books/games try to give villains a reason for being evil. Especially when it is so convoluted now. Let Federation be the bad guy for once! I think it would be enough if Federation couldn't have helped in a crisis situation. Such systemic failure is enough to push people to bad places. But here, we get the son of a secret weapon manufacturer turned terrorist. Meh.
But overall, this was a strong first season. The worst episode was "mediocre", which is quite strong for a Trek series lol, and some real bangers. I think the 10 episode format is way to little and they should have cut one person from the main cast for better focus. I would have cut Reymi.