On the same token, suspension from the scottish cup was not deemed as an appropriate deterrent.
If they must choose a punishment from the 4 open to them then they must at least suspend membership or it makes them look doubly incompetent,
IIRC the charge was "bringing the game into disrepute", and for that there are 4 sanctions to choose from and AFAIK the sanctions can be increased on appeal.
So i don't think the fact that leniency was shown in the first instance that it automatically precludes a tougher sanction due to rangers disputing the punishment they received.