Ecureilx, let me explain to you how you can be a reasonable, polite member of society, OK? Here's what you could have posted:
"If your wife meets the fixed monthly salary requirement, and if her employer is cooperative, then they can apply for a DP for you. That said, DP approval is not guaranteed, and I am concerned about your chances. I recommend having another backup plan, probably one that does not involve Singapore."
Simple, short, accurate.
Your assessment of the original poster's odds of DP approval is an opinion. (So mine would be, although I have offered no such assessment.) It is only
that. No more, no less. OK, so you have an opinion. Then state it politely, label it correctly, and move on. That should be easy, one would think.
For the record, it is reasonable to assume that a significant part of the DP assessment includes the government's views of the EP holder, in this case the original poster's wife. Do you know his wife? Have you met her?
Maybe the government would really, really like her to stay in Singapore, even if she is married to a schlub. Or not a schlub. I don't know, and you don't know.