You may be right. The Office of the President is seldom criticised by anyone let alone the opposition because we all want to give it sense of respectability. The only gauge appears to be the social media.
If I am the PAP, then I would be very concerned about the EP. Given the tide of public opinion, the chances are that a non-PAP nominee will be elected.
The best option will be to bring back the appointed Presidency. The appointment is after all done by the PAP-dominated-Government.
However you cannot just abolish the Elected Presidency. You need the public to suggest that. Therefore your deep cover opinion shapers need to come out and play with the emotions in line with the culture of the different forums. Then in line with public request, they will revert to the appointed Presidency.
Is there a movement in the New Media to bring back the appointed Presidency? If there is, then the above is a possibility. If not, then it is a wrong assumption.