It still stands though; any electrician with any sense of pride in his work would flat-out refuse to terminate such circuits into a new CU. Even if the cable was still workable enough to terminate without causing insulation failure, the installation would be nearing end-of-life making the whole exercise rather futile.
I absoloutly agree with that. Remember this from a little while back?
All bar one of the outgoing circuits are VIR in unearthed conduit