Yup, I'm sorry others have had trouble transferring training but I've now been doing this 2 years and while I do have some clients who have trouble for a while transferring skills at first I have more that do not. Mostly I train dogs that owners are either too busy to train or unable to turn off their emotional cues for behavioral issues. For the first half we still encourage classes but most buy and never show up.
However, Coco, my Aussie client, is now running 12 weaves, 2o2o reliably, and full courses through distractions. Her owner was at my facility yesterday raving to a friend how she does literally nothing at home and we've changed the monster of a dog it started as. Given, that's not ideal (to do nothing) but it happens and in cases as such they're better off with people like us.
Philly, my lab client, recently passed his CGC with us and he basically lives with his owners personal assistant because she's such a busy lawyer you sometimes wonder why she has a dog but I guarantee he's a happy boy none the less.
Leo, my Great Dane client, was extremely dog and human reactive, he broke his owners tooth pulling her down on a walk so she stopped walking him out of (valid) fear. He just passed his TDI. During this training they did do homework but because the husband was battling a brain tumor the dogs and their training took the back seat.
Abby, my reactive pit bull, needed to show her owner she could take the edge off for her owner to stop holding her breath and clenching her jaw when they saw dogs.
Frado, my pit bull, needed someone more expert at evaluating play styles. Some people would never have given him the chance but a trainer at my work did, carefully, and he's the best playmate we have.
Fancy, my Dutch/ABD, needed structure with an experienced handler and her owner had no time. Luckily her owner caught it quickly and brought her to us, the young biter (of humans and dogs)is now stable enough to take through a group class (when mom can find time).
I could go on but you get the point. Our service offers a variety of options and has presented a ton of success.