I just watched the first scene on Ferrix again. It's not out of the question that those first brief images are Aunt Petunia under a sheet and not necessarily all of Bee. You see his eye certainly, but there are some white, sort of gauzy motions as well.
Considering some of what we know of Bee and his capacity to lie, if they told him she was dead and he shut down intentionally, he couldn't be made to tell the truth about events he didn't see, like maybe them smuggling something out of her home (a bomb?) alongside her body. If the wall they decide to intern her in is right next to the Imperial HQ, a very large kaboom could follow.
Considering some of what we know of Bee and his capacity to lie, if they told him she was dead and he shut down intentionally, he couldn't be made to tell the truth about events he didn't see, like maybe them smuggling something out of her home (a bomb?) alongside her body. If the wall they decide to intern her in is right next to the Imperial HQ, a very large kaboom could follow.
Life is better with a beagle