The book itself isn't character driven _at_all_, which makes it notoriously hard to adapt to any visual medium.
But the other shows, especially For All Mankind are really great.
If it were most other show, this particularly subplot would have made me quit but this show is so good otherwise that I still follow it despite this.
I don't get this. The cycling of one empire ("Empire") to another ("Foundation") is ALL of the series. How can it drop it if that's what it's all about every single episode?
That theme is very much out of fashion, you even have people trying to argue that the Roman Empire never went into decline. Everything always gets better, because technology, the inevitability of progress, etc. Anybody who worries about decline is a reactionary, etc.
Personally I think it fell out of fashion because it makes Americans nervous. It's more comforting to think that we're at "the end of history" and American global hegemony will be forever. The Foundation is just too challenging for modern audiences.
There was no way to turn it into a television show without major rewrites.
However, Invasion is my call for the weakest scifi show they've done.
Do not watch.
No more slow burn mystery, with lots of character-based world-building, and protagonists out of their depth putting things together from a limited perspective (with the audience usually one step - but only one - ahead of them). The second season is action heavy, with characters reduced to tropes who seem to have had a knowledge download and all become "special".
I've seldom been more disappointed in a continuation of something I loved.