Hold on a sec. There's a difference between roguelikes and what this guy's talking about. With roguelikes, the rules of the game are tough, but ultimately consistent. Playing the Binding of Isaac, or FTL, or Nuclear Throne, you know what it takes to win, and sometimes the game doesn't give you what you need to get to the next level through RNG, or through risks you didn't take, or you lose them through risks you didn't take but should have -- either way, you know the rules, you know the game, you know why what you did did not work. This is what allows you to develop new strategies and better approaches to the game. FTL and TBoI in particular have done a great job of updating the game with new features, without breaking the meta very much, handing the players more tools within the rules rather than breaking balance outright.
What we're risking in Europa Universalis IV with this constant re-patching, nerfing this exploit, eliminating that one, is a constantly fluid RULESET. This is not by any means, in any concievable way shape or form, a good thing. Changing on field conditions is one thing, it forces both new strategies and new adaptations to the old strategies, and that's fine. completely turning the rules on their heads to get rid of edge case gameplay is quite another, and a great deal more serious -- and more prone to catastrophic backfire than those who are trying to insist on complete historical accuracy in a video game seem to think it is..
I don't mind needing to rethink the game every now and again, it's why you don't play the same nation twice, keeps the game fresh, but I'd like to know that I'm sure what will happen when I push a given button, and some of Paradox's rules changes take that privilege away from me which is just not OK.
And the problem with these constant changes to the ruleset, is that eventually, you're going to make bad ones, even if you're a very good development team (and PDS is a very, very, very good development team). Because it's not just the players. Sometimes the dev team also misses the boat on exactly where the fun is in their own games, or are out of touch with the meta in ways that any new adjustment to the ruleset breaks to the game's detriment. And there have been some very bad changes to EUIV, I'm sure every player, even the most ardent Paradox apologists has a few changes that EUIV has made over the year that are less "this is a great idea!" and more "Well, EUIV is still a good game, better grin and bear it." And when your solution to this is to change more stuff without, usually, even refining what's already there to make it more acceptable, you're asking for trouble.
So I can definitely see where Eamon is coming from when he says that the nerf hammer is being wielded a little too aggressivley against certain metas. Quite frankly, no one can design a game watertight enough to avoid explot metas, and if you try too hard to be the first, then you've lost the vision of the fun, yes including the badwrongfun, that the game has to offer, and this is never a good thing for your game. Stop being police and go back to being devs guys, you'll have a better game as a result I assure you.