Yes, thats true. But if you look further down in the document you can see that they have raised the pre-op value to -8 diopters. So you can correct your -7.5 diopters of myopia with lasik.
Personally I think that the JAA comitee has done a good job towards liberalizing the medical requirements.
For all the young wannabe pilots out there I think that in about 5 years the medical requirements are going to be even less stringent.