I believe that the FAAB Auction deadline should be the Sunday following the trade deadline so teams that make unbalanced trades can fill their roster with free agent additions on the last Sunday.
In my other dynasty league, which was modeled after this one, today was our trade deadline at noon and our FAAB is this Sunday. This keeps all teams on the same playing level for having the opportunity to have a full 33-player roster.
In the Nutbars, the trade deadline and the FAAB deadline were the same day with the Auction period ending before the trading one.
Fairly reasonable request I think.
Ray