Normally, this sets up a battle with the younger pilots and airlines (they like replacing expensive senior pilots with cheaper junior ones) on one side, and older pilots on the other, but given given the fact that there is a severe pilot shortage as a result of airlines engaging in a 30 year war to pay pilots less and screw them out of their retirement packages, it is unsurprising that this made it into law.
The older pilots need the money to account for their bankruptcy reduced pensions, and the younger pilots have plenty of openings anyway, and the airlines, having succeeded in making the job of pilot suck, just need the additional years.