Problem is expectations vs reality. People generally do not want to work over time for long periods of time even with pay. Hell they just 5 years ago reduced the working week from 68 to 52:
President introduces 52-hour work week to help improve quality of life and boost birth rates
www.theguardian.com
Also who cares about an "average" of 52 when you are doing up to 29 hours overtime in a given week.
From the employers side, which overtime options do you think they will be pushing the most?
Also you are not factoring in Asian work cultures like SK and Japan where people stay at work longer off the books because their supervisor/boss has not left yet, or mandatory after work get togethers that conveniently do not get counted as overtime. There is still a big problem with the unpaid and time wasting activities:
South Korea's young workers are dreading returning to work and partaking in a long-standing office culture that encourages spending unpaid time with your coworkers.
www.insider.com
Working hard is a cardinal virtue in the country. Many people do a lot of overtime for no extra pay, regularly exceeding the legal limit of 52 hours a week. The physical and emotional costs can be high.
www.dw.com
So in the end, although it may look fine, when you add it with all of the other shyt employees deal with, it is not that attractive.