Because they can and wanted to! Technology is always changing and for some people this product may be just what they want but for me I am sticking with my My Cloud (1st generation 4TB).
Did you read this?
I know I read on here somewhere that the My Cloud Home is not a replacement for the My Cloud.
Have you looked at the User Manual for the My Cloud Home to see how it operates compared to the My Cloud? http://learn.mycloud.com/