With so many carriers out there deducing the cost of the type rating from one's salary over X years, RYR don't make for a unique case. It doesn't matter all that much whether you pay for the rating upfront, via a salary deduction scheme or via a bank loan with the company acting as your guarantor. In the end of the day, the money comes out of your pocket.
In the same way, there are people making parallels between RYR and P2F because you get a reduced hourly rate during line training and in the contract that's worded as "the contractor pays the company X euro per hour during training". Well, guess what? Many other companies will also not pay you full salary until you've passed your line check. Whether the wording is "you get a reduced amount" or "you pay X out of the full amount", the end result is the absolute same.
How did that happen? Over the years from the 1990s until now, RYR became too big to be ignored in any aspect. And all the other companies started asking themselves - if they can do this and this, why can't we? This, combined with the overall drive to lower costs, including by transferring as much of the training expenses to the candidate as possible, resulted in what we're seeing now. So, don't blame those who fork out the 30K now. Better ask for explanation those who did it 20 years ago.