I'd like to see both. There are a lot of UI issues that could stand to be improved, but fine tuning balance issues is essential to the longterm health of the game.
For instance, the very vocally disappointed Mr. Toaddog said that he had just about played this game out 4 weeks after its release. And why was this so? Well, he had found a one size fits all "strat", the +15 PQ ability, and as far he's concerned, he's "beaten" the game (although his metaverse scores argue differently).
Similarly, a lot of people found that the secret to blasting through the higher level AIs was either tech whoring like crazy since the AIs both didn't trade aggressively amongst themselves and secondarily are more than happy to purchase themselves into complete economic collapse, or the culture bombing route which even at higher AI levels isn't noticed until you've done a lot of damage. Blam, we see both of these "guaranteed" wins balanced out better in the latest patch.
Such changes actually open up more strategies than they take away. You can't depend on just bumping *all* your planets to 20+ as soon as you get habitat improvement to erase all your morale problems for the rest of the game. You can't depend on your ability to horde/whore techs anymore because the AI will fall for it less which makes them play better. You can't just culture bomb the heck out of the map because SBs now incur a minor maintenance charge that adds up if you're doing so (plus the proximity factor makes you go more slowly).
It gives a lot more than it takes away - all three of those things are still perfectly valid ways to play the game and gain advantages, they're just not total solutions to winning in and of themselves any more.