Why wait in your misterious Sith planet and build a secret fleet army with those infinite trillion million resources, instead of just using all those trillion of people under his thumb to crush the resistance? Why don't have a billion of those people just crash their ships on the resistance controlled planets and win the war, get your grandaughter jailed in your sith mansion, give her a sword laser for her twelve bitrthday and fullfill your ambitions in half the time you take to build the stupid planet destroyer fleet?
Let's not defend the idea on its merits, because it dosn't have any merit. The thing is that there was no set-up and it directly contradicts several moments of the trilogy and the new trilogy.
Agree that there was no setup, but I don't think it contradicts anything. Why is Star Wars such a static, sacred thing that it's unreasonable?
It's fine that you disagree, but I think Nerrel put it best in his recent video.
Give it a watch and see if you feel any differently. (timestamped so you can see what I'm getting at)