Beacuse you maybe killed your own stitched, but it has hard to kill so it stay with 1 Wd and reactivate, If they reactivate within 6" of dreamer, it heals.
So stitched has 2 activation with possibility to heal.
Everyone of my opponents told me that it´s very powerful model. And if you can have about 4 or 6 of them on the table in 2nd turn (2 hired and others because summoning) .. it look so powerful!
But maybe its theory is caused by my oponent´s "fear of stitched and crying"