Deliberate erosion of pilot T&Cs. If you pay for a type rating for a job you are very unlikely to ever get out from under, especially if you're not a captain in short order. Selling your soul to the company store.
I further suspect that the salary and conditions negotiations won by the European unions (as the most obvious example) over many years will rapidly erode. In my cursory skim of the article, each pilot is a subcontractor, probably a sole proprietor, working through their own individual company coordinated by Helispeed. That means Helispeed calls the tune.
I wonder how many 1000 hour pilots will play with this scheme and pay for a S-92 or other such rating. For those of us who might already hold a type rating on a complex and modern machine that's in demand, who covers recurrent training costs under this scheme? I could probably hazard a guess.