My initial reaction to the Sky1 idents is that they would have been improved by the "1" being a static, monolithic structure, with the action happening around it/to it, rather than a personified thing in itself. The cartoonish bending of the numeral cheapens it somewhat and that particular "1" shape doesn't lend itself to being an active "hero"/character as well as, say, the BBC "2" does (which may have been the inspiration).
I think "less is more" is somewhat of a lost philosophy in regards to contemporary use of CG animation for broadcast design.
However, I always appreciated the "Sky|One", original "onc" and the "Solid, Liquid and Gas" looks and this adheres more comfortably to the standards set by those. At the very least, it is a long overdue improvement on the previous 4 years, and the Sky Atlantic stuff looks beautiful.