Few reasons. Daedalus is increasing returns so you wanna max it, no middle grounds here. There would be merit for going 1pt whirlwind so you can beat certain ubers easier (ureh/vizjun), but there is no need, ureh is much better to walk around after rework. This way you save few points.
Trading daedalus for ancient blood results in same or even more life.
Wolf companion is another increasing returns formula skill, so higher the base level = better, more bonus each level. So you want it supermaxed, and those extra max levels you get from AB are extra valuable. At same time it already was range synergy to fortress, so we already were almost half way there. Having 15 points into wolves is useless for damage they gonna add very little.
They are great synergy for build that doesnt have sick gear, that added damage is quite significant. You wouldn't pick them if you went lion stance smax, or neph spirit, but for bear, they really add a lot. They add same damage to every deathgaze axe, to every fortress arrow, amount of hits really adds up.
This version of barb deals significantly more damage than old because of it. You could kill boss like hell baal in 15min with this, while old would take well over 30, big difference.