If the "attitude" you're talking about is "balancing as less as necessary" then I'm absolutely fine with it.
I'm playing Duelyst for 15 months now as Magmar Main and 3 cards got nerfed (one of them killed) with the last patch and nevertheless I think this one was one of the better patches.
First: Nerfing is better then buffing. Powercreep is there. It's in every game that's of this style. Buffing accelerates powercreep - nerfing slows it down a bit.
Second: This patch leaves a feeling that CP has a plan (for the future).
Let's take Chrysalis. It makes absolutely no sense nerfing a card that isn't played. It could swing games, yes. It felt bad to lose against it, yes. But if it was so good as some people tried us to tell it wouldn't have been a niche card. I put the card in decks that I never played because they where not as effective as other decks. And I main Magmar and know a bit what I'm talking about.
On top it's a disenchantable Legendary. Why would CP give away free spirit to everyone for a card nobody needs but for niche decks? The only thing that's logical is that they have plans for the future so the card had to be nerfed (sooner or later).
Let's take Flash. A smart nerf. Did they nerf it because of Juggie? I don't think so. They could've nerfed Juggie instead. They don't want double Flash to be possible in the future. For what reasons ever - we don't know them to the day.
Let's take Kelaino. 3 health is nothing. She dies to everything now. It's my believe that this is a preparation for the future. They could have nerfed her to 4 health. But it's necessary (not now, but I think later on) that she dies to Phoenix Fire, to a Tiger, a Lasting Judgement, a Frostburn,... even Blades. They could have nerfed her to 4 health - and, this time, it's my believe they have a plan why they chose 3 not 4.
CP killed cards in the past for no good reasons as I think (Kron for example or Archon Spellbinder, which really could be a very good tool-card if it would be cheaper for the price of a smaller body, Zen'Rui - just examples). This time is the first time I have the feeling it's because of a plan they have for the future.
Time will tell if I'm right or not.
I have to say that I'm not happy with the attitude of CP. And the unspeakable interview one month (or so) ago (the one everybody was talking about) was just the top of it - not the beginning (this was cutting the drop rates of Shim'Zar without saying a word before).
But this has nothing to do with the balance patch out now and the "attitude" they have towards patches. This one (for the first time since long) makes me feel that they're doing well and have a plan.
And that's good for all of us.