I could care less if it is balanced between attributes. If you ask me, that is actually a detrimental design philosophy. Making it fun and viable is my goal. It isn't a competition between perks and weapons, it is what makes you tick? What combination of stuff suits you? If you want it all you can have it all, but just not now. The perk tree as a whole produces a variety of cool builds that play different and provide different satisfying results. I'm still doing agility and am now doing 6x sneak damage at night with my bow, which is quite awesome. I actually inverted my play style, I used to quest all day with my strength build, and build at night, now this character does one little job at night and then enjoys building an entire day, because I do more damage at night and I can move around unseen.