Yes, he got lucky once in a while. But not all the time.
So, in chronological order, we have:

1. "Their scape from the Ministry, finding each other and Umbridge at the right moment, and Umbridge needing the very person Hermione was changed into." (Is this one item or three? Do do you give it one full point?)

2. Narcissa told Voldemort that Harry was dead. 1.00 lucky point