Actually, this only proves that voter in Hougang and Potong Pasir do not egard estate management as their top priority.
.. and voters of Hougang and Potong Pasir don't regard estate management as their top priority doesn't imply that other voters don't too.
So the question is, would the ruling party stop using TC as a political chip
simply because voters of Hougang and Potong Pasir didn't fall for it?
Just like since stiff penalty/punishment had not deterred criminals from committing crime, would the authority stop imposing stiff penalty as deterrent simply because of that?
As I see it, the only reason for ruling party to stop using TC as a tool (to discourage voters from voting for opposition party) is when their scheme backfires--which happens to be the case now, hehe.