So here's exactly what I've complained about: glacier plot turned into avalanche plot which swallows potentially interesting moments. Maybe next Zendikar UR will have stronger focus on characters, but for now it's just...
Vampires joined, but kor that were sent to fetch them didn't return? Not discussed.
Bunch of hungry vampires around? Mentioned in one sentence, and of course all went without any problems and troublemakers from any side.
Defeated and lost unclearly big part of army? Used for angst, caused no other consequences.
All the trouble of fetching roilshapers? For some drums and attempt to shape Nissa's elementals.
Nissa returned and saved their asses? Emotional response of "out troops gained +X to Morale".
Unknown planeswalker popped up carrying Dekella? "Good, our flank is covered". Btw, Gideon, you've just got harsh lesson on coordination of forces, why won't you try coordinating plans with Kiora?
Jori En running alone at top speed? How about some "*****, what exactly went wrong?" thoughts?
So if the goal was to show Gideon and co are so concentrated on battle that rainbow unicorns might appear and all they would think about is recapture of Sea Gate, then it's a success
So about Nissa, I think the problem with her is that creative over invested in her greeness. What I read from Nissa's URs is a character that embodies the archetype of green's focus on the communal and interconnection. This could work as a great basis for a fully fleshed character but there's nothing else to Nissa (other than hinting at a past that doesn't exist anymore?).
Coming off that, she has no small scale. She doesn't have any little habits or smaller investments that help to really define someone. Jace loves a good puzzle and can be snark master supreme, Gideon has Munda and the Boros crew, Kiora tells the rules to go screw themselves and has her sister to worry about. There just isn't anything on that level for Nissa, she's got Ashaya but Ahsaya is literally Zendikar which is literally everything in the story that isn't white, chalky or Ob Nixilis.
Also hello, did you know ranting is a terrible way of introducing yourself?
Ranting is perfectly normal way of introduction to forum. Strong emotions are often what it takes for lurker to start posting.
My current biggest problem with Nissa is that I can't figure out which traits and motivations are central for her and which are there for one story. Latest article messed up with why she's searching for Ashaya, how self-centered she is and introduced a whole new internal conflict. Should I take that new info as true description of Nissa, or the next installment will take her in another direction as well?
Btw it's showing how, for all the moping about her past self being flawed, she embraced her "wilder side" when fighting Ob Nixilis, felt she became in-between her past and present self when preparing to restore the power, but never thought about that again? Not even a line in conclusion, just riding in sunset.