I'm not sure what you think screams commercial breeder/puppy farmer Wolfiefan but I'm just not seeing it.
The only mention of cavapoos on their 'Litters' page I can see is where it says they're not breeding any for the foreseeable future.
I can see anything that suggests they breed constantly, or even particularly frequently. They go above and beyond in term of health tests, including following the recommended MVD and CM/SM breeding protocols. They have a clear long term goal they're working towards and have logic behind the breeds they've chosen to use. Their puppy contract asks new owners to contact the breeder rather than rehoming themselves. They regularly post on their blog about dogs they've bred (clearly keeping in touch with new owners) and do "litter reviews" where they evaluate how successful the breeding was and what it means for their breeding programme. They even take some of the dogs they've bred beating with a local shoot!
I'm totally happy to be corrected if I've missed something on the site which suggests they're in it for the money (I don't see how they possibly could be with the amount of MRIs they're paying for...) or are dodgy in some other way and I appreciate there's a lot of variance in what different people consider to be responsible breeding.
The situation with the CKCS is critical. If more people don't start doing outcross programmes then nothing is going to improve, on the contrary it will continue to get worse. Very nearly 100% of them have a heart murmur by the age of ten. A dog with a heart murmur, even if they never become symptomatic, is not healthy. When MRI'd 25% show CM/SM at the age of one, that number rises to 70% by the age of six and the proportion of dogs likely continues to get higher as the age increases. Again, not all these dogs become symptomatic but that does not mean they're healthy.
It's just not possible to reliably breed healthy dogs from a population that is almost universally affected (even if only to a minor degree) by a particular condition. Nor is it possible to reliably breed healthy dogs when the shape they're being bred into dramatically increases the chance of suffering health issues. The prevalence of CM/SM in the CKCS is directly linked to the shape of the skull and there just aren't enough moderate dogs to improve things.
This situation isn't unique to the CKCS either and we'll see more and more breeds suffering from higher and higher rates of health issues if things carry on as they are. Loss of genetic diversity is inevitable in closed populations, breeding being restricted to only a relatively small number of individuals each generation only increases the speed at which genetic diversity is lost.
The current system is not sustainable and, without moving away from current outdated and unscientific breeding practises, all breeds will eventually end up like the CKCS or the Dobermann.