No, you have read that wrong. There are no credits towards the EIR for the IMC rating -- you have to do the full 15 hours. There are credits towards the CBM route to the IR, to the extent that an IMC-rated pilot may require as little as 10 hours.
If the EIR is accepted by the European Parliament,
of course credit for pilots granted IFR authorisation in accordance with draft Article 4 (8) will be sought towards the requirements of FCL.825 (c) (2) (i).