I'm a Maniac
Man this sucks, why do all the anime I want to buy keep getting delayed. T_T
Just a guess, but it sounds like Toei was busy looking for a distributor (or two), thought they had one, but the deal(s) went sour.
Then they went with Shout. The 2nd delay I think is because Shout has to manufacturer the disks and such, and the process only started shortly around the announcement went live.
Of course, this is pure speculation, but knowing a thing or two about business management and media production, I can make a few educated guesses.