there is a very large down side to having Marshall return your troops..the members in 99% of leagues are global and there for time zones are different .
Have u ever defended a member ? who may have returned your defence to your castle due to fb,s or the fact the raid passed .?
only to find when u come back online your def you sent is now gone..? all that is left is what u are able to resurrect .?
Great if it is pvp ..but what if its not .?
i have been with leagues changing beacons and u have long ago,status members that dont remove it .? i can see the why a Marshall would like being able to remove it as well ..what if that member was u and u are on holidays for 1 week .? only to come back
your defence returned is now all dead as a larger player was looking for pvp .? ..just a thought .