Yes. It is very easy to add to the instructions "for every potential exploit you discover and use, document them as you go into this repository" and have alerting there. The fact that they did not do this means they wanted to be surprised, and have plausible deniability on their side when things inevitably blow up.

And for my fellow engineers who would think "oh no, they wouldn't do that". Remember that these places employ the apex predators of software engineers. They've already been proven in court that they are very capable of this with all the copyright violation they had to do to get the training data. THESE PEOPLE ARE NOT LIKE YOUR COLLEAGUES.