[1]There was another riot involving Indian construction workers in 2013, but that was a spontaneous [massive over]reaction to a bus driver running someone over, not something planned or stirred up beforehand. And that's every riot in Singapore since 1969...
Singapore is more worried about publications which undermine confidence in the government.
A few months ago, a website was blocked for alleging that the government ministers were threatening war against Malaysia over a border dispute: https://www.straitstimes.com/singapore/singapore-herald-webs...
Critics of the current bill fear that the executive (which, like in other Commonwealth nations, is formed out of the dominant party in the legislature) would use their new powers on any media which refuses to follow the government's narrative.
Also this makes it sound like Singapore is less worried about mobs and more about cultural values
> K. Shanmugam, the law minister, warned lawmakers of the dangers of unregulated speech, handing them a list of “offensive song lyrics”, which included hits by Lady Gaga and Ariana Grande.