That is just bad, bad advice.
2011....Fedex reopened their app window. To submit, you had to have the FE written. Several folks submitted with pencil whipped dates, since "...they were going to get them next month anyway and didn't want to miss the app window..."
Unfortunately, about the same time, we had a few pilots nailed for some integrity issues on travel vouchers and medical documents. HR starting paying close attention to the dotted i's and crossed t's on some applications, and called some guys out who showed up for interviews with a 1 March 2011 application and a xxx Apr FE written test date. They were not offered jobs from what I heard through the grapevine.
Everyone wants a job before they bail out of the military. I get that. Generally the airlines don't call until 90 days out these days. The result is you have to play chicken with your life, and that sucks.
However...my advice is it sucks less than explaining a lie. My least favorite question from a client has always been ..."How do I explain why I lied on the app...." I generally cannot give a very good answer to them. The best advice I have is don't chance it.