auv-ee, I'd expect more time spent looking and less time snapping pictures of everything in sight (or site.) 100,000 pictures stored in a 10 bit HD raw format would be quite a lot of data. Now, I am aware that finding computers with 207 gigabytes of spare storage is easy these days if you purchase new they might have decided to save storage and only preserved the pictures that showed something interesting.
Even supposing that is 10,000 pictures the basic answer is, "6 is enough to prove we found it. Now we need to study it all without reporters getting in the way. We will feed you when it's dinnertime."