CorvusCorax
'It's only a laugh, no harm done'
Oh dear, I would step away from helping your friend. I don't know how they can want another silver dog, who then may have similar issues to their previous dog. If something happens with another silver, you may get the blame ?
I do spend chunks of my own time, for free, looking for suitable pups/dogs for people. If they start looking at something I'm not mad keen on, unless it is 'NO NO - BARGEPOLE - DO NOT PROCEED!' I do not find it helpful to slam particular breeders, you just put people's backs up by suggesting they're not very good at researching and it can come back to bite you if you put it in writing. All I will say is something like 'the mother has an elbow score of 1, anything above 0 would be a bit high for me and recommended not to breed from, just so long as you are aware of it' or 'I don't really know any of the dogs in the pedigree so I cannot advise' or 'that might be a very drivey dog for a pet home' or 'there's a dog in the pedigree which can be known for (something vague and not accusatory)' and leave it at that. People absolutely have the right to go for what they want but equally I will not invest my time in then listening to any tales of woe when things go wrong, because I have spent the time flagging things that they decided they wanted to live with.
So to the OP, as Teaselmeg/Druid says, I would advise of the risks if you come across any, not get too invested and wish them luck/politely step away if there are any red flags.