Why is AMD getting the blame here?
IMO both companies get blame but AMD needs to start doing more to protect it's brand image. It has ENOUGH branding issues as it is.
It's the low performer in the CPU world and products like this only enforce this.
Take VirtualLarry's experience with Kabini. Yes, I'll admit he used it for a task that it wasn't suited for, but now his perception of AMD products is tainted. He will have a lower perception of them than intel products.
This is similar to many consumers Windows vs Mac perception. Mac's generally avoid low end parts and thus when people buy a mac, they get a decent level of performance. People don't compare a $1000 mac to a $1000 Windows PC. They compared a $1000 Mac to the last Windows PC they had, most likely a cheap low quality build only designed to be relevant for 1-3 years and was still slow even then.
Ensuring your processor gets in the right products is crucial for AMD at this point. They need all the help they can get in promoting their brand correctly.
For Intel it doesn't really matter. If a user has a horrendous experience with a poor performing Windows Intel PC, they will usually move to a higher performing PC that will always have intel, or they'll buy a mac (where intel will be selling even more expensive Iris Pro Skus shortly I guess).
For AMD, ensuring the user has a baseline level of performance is crucial.