Am I the only one to find this a bit sad? People do what Apple does. I know, it's always been like this...
I don't know why it always has to be this cult of Apple BS. Maybe it just hadn't occurred to a significant number of people that they could use their iPad as a virtual piano until they saw it?
You're finding it sad because you want to find it sad. In reality the explanation is quite reasonable. People saw something cool and wanted to try it. That's real sad alright.