It's not a feature just because you can click a button and turn it on or off. If it makes a piece of software merely useable for a large set of your customers AND you're still selling it to those customers who just want the software to work then no objective person on the outside would describe this as a feature they would see it as a bug fix. maybe you're too close to this to be able to step back and see that perspective. Also, again it's not about effort, it's about customer service for a piece of software that you're still selling.
If you pulled a person off the street who just bought a new XPS 15, and then they bought from Adobe CS6 and tried to use it. And they called the support line to find out how to make it work, and discovered your position on this, they would not see it as a feature but a bug. They would expect any software company to support something they just were just sold by that very company. Again, maybe your too close to this, to see that that is how any customer would expect to be treated. (It's not about release date or versions). Many software companies including Microsoft, understands that.