It is mind-boggling in a way, but then again not.
IF (and it is a big if that many -- including Zeke, the Cowboys, and maybe the NFLPA -- dispute) you deem the EE matter to relate to domestic violence
and IF (again, disputed in many quarters) you believe that he likely committed DV,
THEN you have no choice but to impose the minimum 6-game suspension that the policy in force now dictates.
The appeal -- and any subsequent arbitration and/or court proceeding -- will of course be fought over the "IFs" above . . .