Bus drivers' salaries increase a ruse?

Last week, SMRT announced that it is raising bus drivers' salaries by 35%. [link]
However according to report by the local Chinese news daily Sin Min, the number of days that bus drivers have to work increases from 5 to 6 days. Is overtime pay considered as pay raise?



Related:
SMRT raises bus drivers’ basic salaries by 35% - Yahoo! News Singapore
SMRT Bus Service Drivers Blow the Whistle - The Online Citizen