Bringing a 4x to console is a reasonably large undertaking. It’s not just the work that goes into creating an intuitive controller scheme, and establishing input speeds etc., it’s all the additional UI that it requires (unit selection etc). Then there is getting it past the platform holder. Used to be a complex system, it’s become easier in the last 10 years, but you still have to have a save system that’s compatible with the requirements of the platform, you still have to be able to support suspend and resume in your gameplay, you still have to put in trophies and achievements. It’s months of work for a small team, and ultimately, if it won’t pay the bills, then they can’t justify doing it.