I sort of agree with the sentiment but as with most things it depends on the individual and the situation
Sounds like you are doing great with Chloe but some people may not have the time or inclination to deal with a dog with so much drive. Obviously you do so the comment is totally out of order - not to mention unprofessional to discuss a client with someone else
However, the problem is that more and more people seem to be getting working cockers as pets in towns and unsuitable homes and when the owner decides they cannot cope the poor dog will end up in rescue.
Coco is show type but is very lively and naughty and she was my first dog - I did a lot of homework but I was still shocked by how demanding she was and still is.
I was determined to persevere though and am glad I did but it has certainly been a challenge and if my circumstances were different I would have struggled more. I have had people say to me that a cocker is not a great choice as a first dog but it depends how much you are prepared to put in - in my case, and I am sure in yours, I have put more into dog owning than many people I know who have had dogs all their lives.