This is quite an article. Of course, only time will tell if Sony has really changed. I still remember back 20 to 30 years ago when buying something with the Sony name on it, with a few exceptions, meant you had chosen quality over price.
Somewhere along the way, somewhere post Walkman (you know, the cassette tape ones), they lost their way. Now they are trying to find the road back. Building stuff people want at a price they can afford is a start. Not pulling any more DRM tricks would help, too. Not making everything proprietary (memory stick) would be a finishing touch.
I read the word "control" in the article. I do think Sony tried to control their customers, and their customers said, "no thanks".