It seems as if this patch was announced due to the amount of backlash Johan Lerström got for saying "the game is stable, we don't need to patch it at this point".
So it really is the contrary.
Well, if something like that really was said, then this is far less than the backlash that was actually deserved for saying something like that. (Problem being not even the merit of that kind of claim per se but the cognitive dissonance/disconnect between those who develop the game at this stage and those who actually play it. Obviously quite some flak would be deserved for deciding to ignore bugs and flaws that don't interfere with physical stability but prevent correct operation of the game in terms of its functions, its purpose etc.)
We are aware of this attitude from some people. To be perfectly honest, we used to have an even worse reputation before

We are doing our best to improve, but sometimes things just go wrong. CK2 is a really hard game to develop for now as the complexity increase with every expansion and we will keep on smashing bugs to the best of our abilities.
And that's on okay thing to say. When you put it that way, I can begin to see the small size of your company and the indie-sort-of initial background and everything else that contributes to the big picture.
Now when the PR stuff tries to weave a fairy tale that doesn't exist or someone makes a smug/inconsiderate remark about satisfaction with the state of the game, that produces the opposite result, or when players themselves get attacked for having an 'entitled' attitude or supposedly being unable to ever be satisfied with anything.
The people should be happy that Paradox still release free patches and expansions for a game released in 2012. Three years ago.
Not necessarily. Without DLCs, it would have been possible to debug and stabilize CK2 and move on many months age; it's the DLC's — which are paid-for products, normaly work for a living and product for money exchange — what delays fixes and produces the need for more. And while DLCs do to some extent pay for bug fixes, they also pay for the time spent making more DLCs. Therefore the DLC programme shouldn't be represented as some kind charity/beneficence/fundraising for bug fixes. And while it's the noble thing to do to keep fixing a game post-release (despite the 'AS IS' disclaimer in every EULA these days), fixing bugs in one's own software is more of a matter of being responsible for your own product than of charity as some forum members try to present it.
This is not to criticize DLCs but to mark the difference between a fair mutual deal (sale & purchase), and charity (i.e. gift).
Continued purchasing (to support a vendor you like) is equally a title to gratitude as continued selling (to provide nice things for your customers). It's basically a balance with equal scales. Can't present it like a one-way charity.
We shouldn't discourage them from releasing free patches that promise to fix the issues that bother us the most.
Yeah, when dedicated fixing effort starts taking place, we should encourage and not discourage it. (But for obvious reasons I wouldn't criticize Duke for being a little discouraged himself.)
If i create an Ironman game now (which will be a long running one) will it be outdated when the update comes??
in other words, should I wait for the patch before starting this long running game??
You should probably wait for the patch and even the tech upgrade. This is because while it's possible that you will escape all major mess in your game, it's far from guaranteed, and what passes for a 'minor' bug can still wreck your game in a major way. For example an antipope
could drive Catholic moral authority into the ground in your game and make Catholic realms in Europe's heartland keep infighting when the Umayyads and Abbassids and the rest of them keep nibbling on the fringes. In a non-ironman game you could use the titleowner cheat to set the antipope's liege as the owner of the antipope's bishopric, thus instantly ending the antipapacy, and you could also console-kill any female antipopes etc. In ironman, you can't. The importance of this depends on who (where, how large etc.) you play as. As HRE you probably won't suffer much, but as a smaller Catholic realm you could end up being on the losing side with the other Catholic guys if things were to go badly.
Viability of ironman games — where you can't edit saves or use console — is a good gauge of where the game really is at.