Quote From: Chance
I don't understand why they're rebroadcasting BW25 and 27, especially since they just aired less than a month ago.
As the article states, many missed out on the initial broadcast of those two episodes due to the earthquake. this way, they're allowing everyone to see them.
The skipped episodes will likely be aired in the regular slot, rather than on Smash. These are all-new episodes of the anime as far as the viewers are concerned, so airing them as regular episodes rather than stuffing them away on a spin-off show that gets half the ratings the regular show does makes little sense.