I really enjoyed and finished the game. however you dont have to do any tactics or move troops around at all. I was diversifying the troops, but I got stuck. Then I put all of my prestige points to knight upgrades. Just by recruiting knights, I was able to finish game in one run.

Yes. Many people noticed this issue. You can still do strategy to optimize your run, but for the full release we'll work on this issue to make variety and strategy more impactful and meaningful.