it would mean no more meddling and tinkering with current requirements and no interference with sub-ICAO / non-JAR matters such as UK BCPL, NPPL - and, of course, the UK IMCR!!
Are you sure about that? If the JAR texts are incorporated into EU law "as-is" then, as far as I can see (but IANAL) these laws supersede the ANO automatically. And if the JAR texts don't leave any room to be augmented with local laws, then everything local (NPPL and similar, IMCR etc) will automatically disappear.
On the other hand I have to agree with the EC: EASA is way overdue. EASA-FCL was originally promised for, what, 2008? Something has got to happen.