Translation: PSN has a bad name because we ****ed up big time, to remedy this, we'll change the name and feign ignorance when it is compared to SEN, while hiding behind the facade of a ,"software and firmware update."
You guys got it all wrong. SEN (or SNE) was mentioned well before the PSN attack. Which hasn't been performed by Anonymous anyway. It also makes sense to change name, because there are televisions with access to the PSN (for the movies). This step is bigger than how you describe it.