求助--澳大利亚拒签，是否值得马上再补材料申请？

求助--澳大利亚拒签，是否值得马上再补材料申请？

我和老婆，以及朋友和他太太，今年3月就买了亚航12月往返墨尔本的机票，我和老婆的签证出来了，昨天朋友和他妻子两个都被拒签，我们分析他们2个被拒签的原因是
1）工作年限，他只写了5年，实际上在事业单位上班20年了，前15年在另外一单位
2）资产：只提供了一套房产证

在这种情况下，请教各位如果补充以下材料，是否值得马上再重新申请？
1)补上第2套房产证（下周可以拿到手）
2）补充说明工作年限，请工作过的2个单位分别出证明

请问可行否？谢谢

以下是拒签的英文：
Reason for Visa Refusal

This section details the requirement you did not meet.
You did not satisfy Subclause 676.221(2)(a),which reads that :
The applicant satisfies the Minister that the applicant’s expressed intention to only visit Australia is genuine.
While you are employed, I do not consider your employment circumstances to be a strong incentive for you to return to China.
You are of working age. I consider that your employment circumstances do not constitute strong incentive to ensure that you will comply with visa conditions in Australia.
While you have provided personal funds evidence. I do not consider it is sufficient to demonstrate that there is incentive for you to return to China.
As a result of the above, I can not be satisfied that a genuine visit is intended and therefore must refuse your application.