If this were completely true then why does CR also recommend quite a few models from Ford? I agree they can be pretty lenient on some of the Asian brands, especially Toyota, but they do recommend many models from other companies if they test well and have good reliability data.
I fail to see their motivation for doing so.
Many Toyota owners are quite happy with their cars, in spite of the latest rash of gaffs by the brand.
I have never submitted a survey to CR, but I am quite happy with my 4-year-old KIA Optima/Magentis.
And we all know how Honda owners feel about their vehicles.