I specifically asked Linda at the 2019 ASM if she will unblind only when the regulators have approved the SAP. (I used the word "approve" because I didn't know better). Her answer was yes. I agree we all realize that it's possible that some RAs may not have commented or responded. We don't know if NWBO, after advisory from the SAB, has decided to unblind regardless. It's worth asking DI that question. But I suspect we will not get an answer on that one.
I'm inclined to believe that they have the blessing of all the RAs, based on the tone of today's call, all that "excitement" in so many sentences, the fact that DI didn't seem too vague in response to the SAP question, the theory (if true) that Duffy came to help with the SAP, and so on and so forth :)