Stellaris is very good comparison. Another game that was "technically complete" at launch but absolutely devoid of content or compelling systems, requiring years of DLC and reworks to core systems before it was "good."
I have the exact same problem with Stellaris as I do Vic3. "Click buttons, build stuff, watch numbers go up." Vic3 warfare is sloooooooooooooooooooooow, but Stellaris warfare is exactly everything I hate in a strategy game. Millions of directions for the enemy to come from, literally infinite once gateways start getting activated and the L-Gate is online, and you have to separately recruit a bunch of ground units with no macro builder like the fleet manager, that you then have to babysit while it gets to the planet to invade. "Chokepoints" do nothing. You don't fight on your own ground, you just don't. So the only nations that will actually invade you are crises, who blow through a 70k starbase like it's the first pig's straw house. Oh, and influence and claims are the worst system ever designed, I hate them so much. In the end, every game, I sit around, growing peacefully, doing the ascensions, uniting the galactic empire.
Here, you wait a million years during a """diplomatic""" play to conquer a single state, while all the countries with interest in the region dogpile you, because the Geneva Convention clearly states that you have to give 100 days' warning to a country that you're going to invade them. (This is awful in HoI4, and it's awful here.) Right, warfare's a pain, so what else can you do? Click buttons, wait for reforms, build stuff, watch numbers go up. Pray to RNGEsus that you get an IG leader with the right trait to complete journal entries.