This i disagree with in principal because in my experience when Paradox screws up (by the way this is NOT the first time a patch has been this broken) they do their damnedest to get us working again, and while it may not be "perfect" (really what is in video games today) it is working - as long as you don't use missiles

(which is unrelated to the patch and am glad they are working on it).
Just look at EU4 and CK2 and even HoI4. If you want a buggy mess look to HoI 4 not Stelaris. Even then i still enjoy HoI 4 and it is getting better (as sometimes i miss the wars for Africa). Look at any game in the industry today.... ANY GAME. Especially newer games not games that were patched 40 times during its life cycle. Heck just compare a game of EU4 vanilla from launch and EU4 today.
As for cutting things for time... welcome to the creative process. For ANY industry. I am not joking. Things get cut for time (also budget - just look at the new King Arthur movie - WAY WAY over budget). They always will. There are great Youtube videos from many different people in the gaming industry alone trying to explain this to consumers not to mention the myriad of other industries doing the same thing and for exactly the reason you think : most people do not understand the larger issues concerning creating a video game (or the creative process in general) or even the economics of it and trying to bring it to market. It gets thrown around a lot but this is a company and they make games to make money. If they dont make money on a product they wont make a product or continue to support it. They make them for fun too or i dont think we would have Grand Strategy or other genres : we would only have Candy crush everywhere with the flavour of the month/quarter thrown in for good measure.
Even then it isn't new. Even great games of the past got things cut or released as a buggy mess (cough cough Bathesda) . Sometimes they are rushed out the door too soon (tabula Rasa, MoO 3....poor poor MoO 3), or something last minute happens (that's normally when the shit hits the fan btw) that screws stuff up and then has to be dealt with. Sometimes the logistics of a launch can be underestimated (Sim City, Diablo 3, etc...) This is still the nature of the creative process.
Shit will, i repeat WILL go wrong. No matter how hard you plan it will. It really is how a game developer handles the bad that shows the true character behind that studio.
As for releasing buggy patches...... The best and worst example is World of Warcraft. A game that made more money then anyone has any idea to do with , so there is " no excuse" for not being able to hire more staff to throw people at the product development. Shit still went wrong, or cut for time, or budget. Why... cause stuff happens and things take time if you want to have a vision get realized. We've seen this happen in real world issues too with bridges and tunnels and other large infrastructure projects whos budgets have exploded either to mismanagement, feature creep (yes that happens in the "real" world too), or quite frankly cause things happen that you didnt expect it and it takes more time - along of course with all the really bad stuff like curruption and bla bla bla.
Hell just look at Harmonics and the downfall of Madcat. I don't think anyone saw that happening and the product was still good just there was not enough interest for the scope they had planned.
At the end of the day we (the consumer) want it yesterday (even i do), but most (i stress this - as it is the minority who do) do not understand even the simple logistics or make it overly simplistic as to why things are not done. Things are rarely as simple as they seem and the resource that is most limited is time. Things take time. Good/Great things take A LOT of time. Every so often something magical happens, but those are the rarity - and even then an immense amount of time and effort was spent.
Sorry for the wall of text but i just saw Alien: Covenant this afternoon and needed to vent after seeing that craptastic movie. I chose that word specifically.