no more Steven Tyler

After a countless amount of years and albums, Steven Tyler of Aerosmith has quit the band. Joe Perry wants to still continue on with the band though.
Is there even a point to this? In my opinion, Steven Tyler was the band and Aerosmith will now just be a cover band of itself.
What are your thoughts?

Here's the full article of the story - http://www.nme.com/news/aerosmith/48286