This bothers me for a few reasons. When I have children, I want them to enjoy the classics just as I did. The idea of them reading these books as "new versions" of the original works actually makes me sad. LX is right, if they were kept the same it would give an opportunity to teach. By erasing certain aspects completely, it limits what can be learned from it.
Luckily, I've got copies of most of the classics and will gladly pass them down unchanged.