My perspective and reasons may be different from the other 2 NMPs but we were all in agreement about what was the most strategic collective decision.
In a nutshell though, if you are worried that you cannot speak up on current issues on FB, whatsapp, coffeeshops etc. stuff now that the law is in place, you need not be worried. Whatever you want to speak up on, keep speaking up on it without fear. If you see an injustice, speak. If you see a cruelty, speak. Singapore is a better place if we courageously speak up on the things we love and want to protect.