I guess it depends if he told him this before or after...
Richard at RCC is a good guy, but then so is Terry Kizer & Bill Hahn Junior & so was Barry etc. if the bike was in their own workshop or in a competent installers then failure rates would be almost zero no matter the kit choice.
I saved a customer on a Superstreet bike a 3rd head gasket this weekend by simply relocating his map sensor away from his regulator rectifier. I had never seen this bike or directly sold our kit . DIY installs, naive tuners & bad Internet advise its all there....
Half the battle is educating the customer.