Surely an EICR does have to be undertaken with reference....
With reference, but you can't fail it for not meeting 17th, if that's what were meant.
Of course you can, if the non-compliance with 17th Ed is considered (by the inspector) to be sufficiently serious to represent a danger.
There are plenty of things that would have been compliant with old editions of the regs which are not only non-compliant with current regs but are clearly, in terms of current attitudes to safety/danger, totally unacceptable - and it would make a joke of the whole concept of EICRs if such things could 'pass' an EICR, just because of their historical compliance with ancient regulations!
Kind Regards, John