The last Bristow Group ad seems to me more of a survey on what is out there. CHC has had a job ad out on their web site for a long time wanting to recruit captains for "upcoming" international touring positions.
Only a few companies wants to pay for a complete type rating for pilots. It is much better to do it the Ryanair-way. Unfortunately for them the need for helicopter pilots has been on the rise for a long time and it is not going to slow down just yet.