I am hearing bells in my head...somewhere in my dark past I read that 1 or 2 pixels is acceptable, but never the less, take it back and complain, I bet you they will honour the warranty.
When you consider there is 6.1 million pixels and you have 1 that is hot, that is probably the best failure rate you will ever get.
I bet car and computer manufacturers can't guarantee 1 failure in 6.1 models. :lol:
I believe they use a method where they map the 'dead/hot' pixels so that only good pixels are used to create the sensor.
It can't be right to have an image sensor where there are obvious shortcomings.