uh? The Amonkhet story about Samut's childhood was really good. No planeswalkers in it.
For reference, I'm explicitly counting out Samut's stories, because her sparking was the most obvious thing since "Emrakul is in Eldritch Moon". While she's not directly tied to the Gatewatch(yet), her entire stories are set up for her sparking during Hour of Devastation.
For reference, here's how many stories per block didn't feature Planeswalkers(at the front and centre, because I'd consider "Shaping an Army" to be Noyan Dar Focused despite Gideon's roll in it) since the formation of the Gatewatch Idea(So BFZ onwards)
BFZ Block:
Memories of Blood(Drana)
Shaping an Army(Noyan Dar)
Reclaimation(The Elf Sisters)
The Blight We Were Born For(Tazri)
Beneath the Surface (Jori En)
SoI Block:
Under the Silver Moon(Hal and Elena)
A Gaze Blank and Pitiless(General Overview)
Sacrifice (All Hail Gitrog Toad)
Games(Gisa and Gerald)
The Lunarch Inquisition (Odric)
Saint Traft and the Flight of Nightmares (Thalia)
Both of the return blocks had about 5-6 stories where we spent time away from the Gatewatch/Planeswalkers, even if they were still relevant to the events of the narrative (Kiora is why Jori En went on her mission for instance). Compare this to Kaladesh/Amonkhet, which have the following ( I'm aware the Amonkhet one is a bit off because Hour isn't over, but we got one story roughly from the second block in SoI/Oath )
Kaladesh:
A Time For Innovation (Rashmi)
Born of Aether(Yaheeni)
In the Dead of the Night (Yaheeni)
The Skies over Ghirapur (Kari Zev)
Amonkhet:
Trespass
Judgement
Hour of Revelation
All three of these non-Gatewatch focused have involved Samut, who we know is sparking. Of the Kaladesh ones, two of them are about a character who is dead now, one is a one and done, and the other is about Rashmi, one of the few who know that other worlds exist on Kaladesh.
The story feels smaller to me because there's less background to the setting. No one will want to return to Kaladesh to see what Sram's up to like they did with Thalia(or even Odric).
Edit: it still really, really bugs me that they just left Innistrad the way they did, with no resolution to anything beyond the immediate Emrakul problem.