Yes - but with the 50% white flag it still takes twice as much effort as it did two years ago, before the new towns.
I'm not sure how you arrive at that statement, because there are 3 glaring things going against that logic:
A: Fewer buildings need to be taken down with the 50% (half of new town = 46 buildings) rule than with %100 of old towns (old towns = 53 buildings)
B: A single pass by a heavy bombers can take down the new town at 50%. Bombers needed to make 2 passes minimum on the old towns.
C: There needs to be absolutely no recon or inspection of the town with the white flag, it is quite obvious it is ready for capture. Previous to the white flag, stop and think how often people asked "is town down? Do a fly over and verify town down", etc. Stop and think how much more involvement there was AND how often human error was involved (missed that single building!!!) when capturing a town. The white flag ends all that. Simply pound the town with 1 pass from a set of heavy bombers, a pair of attack aircraft, etc, and watch for the white flag. Easy peasy. No challenge. No recon, no inspection, no one last check.