This method deals with messages arrived as regular message but its contents are compressed.
Such messages come from message senders who are configured to compress large messages, and
if some of the messages are compressed below the min-large-message-size limit, they are sent
as regular messages.
However when decompressing the message, we are not sure how large the message could be..
for that reason we fake a large message controller that will deal with the message as it was a large message
Say that you sent a 1G message full of spaces. That could be just bellow 100K compressed but you wouldn't have
enough memory to decompress it