Thanks for the crit, Leveritas! Addressing your points:
… hard to objectively define.
Yeah, and I'll try to change the wording. I like SCProcedures that have what seem to be non-sequiturs at first glance. The point of that bit is that anyone who would need to monitor, study, or otherwise come into contact with the SCP gets a preliminary screening (even if it's something basic like "answer the following questions on a scale of 1 to 10") just to avoid potential hassles, after all, you don't want to have a researcher out of commission for a few days from something so easily avoidable.
Physical conflict?
Yes, changed.
This is…very drastic.
So here's where the problem came from. Originally I had the interview just end around there, and Guillermo would then go back to interrogation and would be subsequently released. Then I had a hard time justifying that the Foundation would just let a known anartist, who knowingly released an anomaly in a public location, go free, even if he provided intel on AWCY activity. Also, there's precedent for anartists doing Houdini-esque stuff like this in the Cool War, among other places.
In the end I decided I wanted him to escape, although if the current version is too jarring then maybe I'll just say he escaped right after interrogation or something. I do think that having him vanish during that interview further illustrates the contrast between Guillermo and the doctor, and strengthens the accusations in the final exchange. Another possible route I considered was to have the dream entities themselve aid his escape, but I had even more trouble trying to make that make sense.
This isn't my first rodeo when it comes to writing skips, but this is the first one that relies heavily on dialogue, so it's good to hear that you think it's believable.
It's real hard balancing "leaving the reader wanting more" and "leaving it unfinished". Which of those does this piece lean closer to, in your opinion?