Quarantine measures at the next port are a chemical shower and changing into fresh clothes, not a full isolation.
The cat academy is happy to give them a tour and talk all about their cats! Most of their business is training cats that people bring in, for a variety of roles including guard cat, ship cat, cleanser cat, scout cat, guide cat, and teacher cat, but they also have a breeding program that reliably produces grade-A cats! They certainly think their precious brave little fuzzies are intelligent and skilled and would like assurances that any cats sold are going to someone who can take care of them. Prices are high by local standards but not by OTC ones. The cats do not prove to be people, but grade-A cats are definitely both more biddable and smarter than any cat Thorn may remember seeing in other worlds. They have anecdotes of cats doing useful things from rescuing babies from near-accidents to pestering and tricking beasts in combat and saving lives to alerting owners of expired medication and spoiled food.