It does seem unfair that most of the fixed wing IR course is done on single engines with a multi conversion at the end but JAR heli IRs have to be on twins (with the exception of Bristow's 206).
Why does the JAA consider a single engine to be ok for IR training in fixed wing but not helicopters? Doesn't make sense.
If the policy is extended to helicopters (which we don't know yet) it may actually increase business for UK FTOs in that it puts an IR(H) much more within reach of individuals.
Also, it will reduce the training costs for North Sea and other public transport operators, although things may start to follow the fixed wing world where you're expected to have a CPL/IR before you start applying for public transport jobs.