Sometimes the FA will give a CK/EXP two instead of one drink. Others go strictly by the limit of one.
If it is more than one drink - then I suspect a CK/EXP in MCE would get more than one. They may give you two - but I doubt they would give you 4 or 5. Likely what was said above - a drink per cart service. Some people ask for a double, maybe they would accommodate that - but we will see. Probably more up to the FA working at the time.