All this does is limit the use of different mapping styles even further.
People have been complaining about "pp mapping" and that most of the newer maps are mapped with the same style which uses a lot of repeated back-and-forth jumps and a high OD. It's kind of relevant, because if you look at the insane difficulties in recently ranked songs, you will see that most of them fall into this mapping style.
Then there are maps that have several insanes. Often these GD insanes are mapped in a different style, which gives people of different skill levels the opportunity to enjoy the map. With the new rule, the mapper is essentially forced to delete the GD insanes and rank the map with his "pp mapping" style insane, because that is the difficulty that will get played the most. This leads to most maps having the same style insane.
TLDR: Enjoy playing the same map 100 times with a different song in the background.
People have been complaining about "pp mapping" and that most of the newer maps are mapped with the same style which uses a lot of repeated back-and-forth jumps and a high OD. It's kind of relevant, because if you look at the insane difficulties in recently ranked songs, you will see that most of them fall into this mapping style.
Then there are maps that have several insanes. Often these GD insanes are mapped in a different style, which gives people of different skill levels the opportunity to enjoy the map. With the new rule, the mapper is essentially forced to delete the GD insanes and rank the map with his "pp mapping" style insane, because that is the difficulty that will get played the most. This leads to most maps having the same style insane.
TLDR: Enjoy playing the same map 100 times with a different song in the background.