Right but -- the attack vector is different. Scan/parse 10000s of JPG, and all that jazz -- to get identites. Not Trivial. Or if the hotel stored the copy as a physical photo copy -- you're not bulk scanning 10k pieces of parchment at super speed for your identity-theft ring.
But download JSON blobs? From 10k records the hotel didn't store properly (cause they are not IT experts, or don't have experts at close hand) -- if you get in to their system the JSON is loads easier to parse than the JPEG.
Methods for KYC could(should!) be improved.