The beauty of Paradox is that we're not most companies.
On a very general note - because it's veering slightly off the main topic - we will continue to support and develop for a game so long as it makes sense to do so. We always want to have a long tail on our games' life cycles because then we can keep developing for it. I think this is something that many of the teams here at Paradox live by because we're making games that, first and foremost, we love. The longer their lifespans, the longer we get to develop them and spend our time and energy on them. To answer the OP directly with regards to the Console Edition's versions...
We know. It's one of those high-level decisions that had to be made. There needed to be a branch at some point where we began development of the Console Edition and stopped chasing ever-changing and evolving posts. 2.0 was a massive impact, yes, but by this point we'd already made a lot of progress on the Console Edition that it's just not a sound move to pull the rug from under the development team at Tantalus and start shooting for different versions. This would have been a perpetual thing, because 2.0 was also quite contentious among some of the community.
Anyway, a decision needed to be made and we always have to try and be smarter with our development resource. Money is not infinite, time is not infinite, and throwing more programmers at something does not always make it roll along faster. It was just a wise move, in our opinion.
Catching up with the PC's versions (and probably skipping a few versions in between perhaps!) will be a far easier task with the solid base that Tantalus have built with the core UI, gameplay experience, and overall conversion to console. The decision of what happens next is out of my hands and not within the remit of my role, though, so the rest we'll wait and see.