Plus expenses,
Yes, the rule is as it was in JAR-OPS 3.
The text of the rule (OPS.CAT.418.H) can be found at the top of page 75 of this document:
http://hub.easa.europa.eu/crt/docs/viewnpa/id_68
You also have to apply the method of compliance which is on page 335 of the same document (the method of compliance is part of the rule unless an
alternative method is present - which it is not in this case).
It is not clear to me what 'disadvantage' means in the context of your post; the rules for CAT have always been more stringent than for General Aviation. This can be seen, for fixed wing, in the differences between Annex 6 Parts I and II and, for helicopters, the differences between Annex 6 Part III Sections II and III. This is reflected in EASA OPS in the differences in the rules between Subpart GEN and Subpart CAT (all found in the referenced document).
For those who are interested in GA, the rules in Subpart GEN are also split between complex and non-complex aircraft (for helicopters, the division between Parts 29 and 27) which reflect the changes made to the structure and SARPs of Annex 6 Part II at Revision 27.
Jim