Lufthansa group has actually made a move to the opposite direction. Starting next year, all business class flights will earn the same amount of status points, regardless of the booking class. Award points are revenue based. The famous P-class with 100% earnings will fortunately be gone.

The same principle applies to economy and premium economy. Booking class does not matter, only the class of travel.

https://www.miles-and-more.com/ch/en...ts/update.html