Actually, this is quite clever of Adobe. Get those with newer versions of Photoshop (who are holding off changing to the cloud) with a good enticement.
Once they leave their old program behind, up the price in 12 months, and then they're either stuck having to work on the cloud, or drop back to older software they will then find limiting and may not open up some of their work anymore.
It doesn't solve any of the original problems for clients who haven't upgraded yet - just a nicer 'interum' pricetag incentive to try and get them to forget the other concerns they have.
If one was going to upgrade to the cloud - this would be a good opportunity, otherwise for others, the words of Admiral Ackbar ring in my ear.