Besides all the manuals and engineering data, the legal world, HR departments, general office documents... It was the first practical locked document, now it's way big and a target. Companies don't like changing programs because they will have to provide training no matter how simple the conversion because most people don't react well to change and most are not computer whizzes, plus the time to recreate forms, compatibility with customer systems, not to mention the IT departments will have to make sure there are no software compatibility problems or security issues as well. All that cost money. Many have proprietary software so it's not so simple of conversion for them. They expect a fix and will wait for it. Adobe has too much to lose so they will fix it.