I do not understand why some of you like to push or seek for things that are not there. The rule clearly states that on occasions, there are family members who have tried landing before the principal applicant however, this is not allowed unless it can be proven that the principal applicant was on a different flight as the flight the family were travelling in was full to hold him or her and other reasons and in the case of this applicant, you cannot convince immigration why you and the family are landing before the principal applicants. Only and I mean only if you are able to convince the immigration officer of above would the family be allowed in.
Looking for quick fixes and loopholes is not the best way to be starting on this new journey in your lives and why jeopardise everything over something very silly.