Ok, to be honest I'd be a lot more conserned about whether the breeding dogs were both MRI'd. SM is actually a far costlier and painful concern for cavaliers -- almost every one will eventually have heart disease so the goal there is reducing the likelihood that it is early onset. But no responsible breeder would even consider breeding without MRIing at this point, with the knowledge now that the majority of cavaliers eventually do have SM (though not necessarily with high levels of pain, thankfully). Checking hearts and eyes are the easy and cheap options and no decent breeder can claim they are health testing if they are not doing MRIs on breeding dogs, and they know it (that said, if properly heart testing, a puppy buyer also wants to know whether the breeder is breeding following heart protocols -- eg are both parents over 2.5, were they clear within the past 12 months with their respective parents (all four grandparents) heart clear til at least age 5?). If the latter is not the case then parents should not be bred til they themselves are age 5 and only if still heart clear. Lots of breeders test hearts but lots also do not actually use those results to breed in a healthy way. So there is 'health testing', which most breeders will claim to do, and there is real, proper, health testing AND breeding. Very few adequately do one and even fewer do both, so their claims that they health test are most often pretty meaningless. This is what makes it so hard for puppy buyers who actually care about the future of the breed.
Did she say the parents were genetically tested for dry eye/curly coat? If so then ask for (to see) the results on parents. Both parents must be positive for puppies to have a chance of inheriting DE/CC. If one or both were negative then the puppy cannot have DE/CC.
Puppies and adults have varied coats. All have some waves or curls; they are not absolutely straight coats. Show dogs are blow dried straight so do not judge what a cavalier can or should normally look like -- huge variation! -- with pictures of show dogs. If a puppy were likely to end up a show dog, breeders generally would not sell it to a pet home.
Many pet cavaliers are larger or sometimes, smaller than breed standard, have curlier coats, have body shapes that are not quite to show standard, a range of markings (though markings are the least important in a show dog) etc. The show pictures are pretty but not a true representation of the day to day appearance of a cavalier! :lol: