I like when bands take chances, but usually that means musically. The concept is surely different for the band. Sure, there is some Disney-fied parts on TA, though some would argue that element has been in the band's sound for over 20 years, they just exploited it here.
However, when you break it down, and I've said this before, TA is no different from the other Mangini albums from a sonic and pure technical perspective. They didn't really mix up their style of playing compared to ADTOE, DT12 or DoT. I'd say the band took bigger sonic and stylistic risks making Awake, FII, Scenes, SDOIT, and TOT, and they were pretty much all successful. All the Mangini albums have a singular core sound that varies little between tracks. So to me, the long, drawn out concept that isn't very interesting actually helps bringing the album down, as opposed to if the music was compressed into a single disc worth of music, and wasn't bashing you over the head with the concept.