The helicopter was following the route and at the right altitudes. It was ~700-800' below the jet, rules would be 500' separation I think. Jet was not being wrong being overly cautious as they probably didn't have a visual on it.
> 6.3.1.5 When an RA is issued, pilots are expected to respond immediately to the RA unless doing so would jeopardize the safe operation of the flight. This means that aircraft will at times manoeuvre contrary to ATC instructions or disregard ATC instructions.