My understanding of other message queueing systems is that many are motivated by speed to the point that they will permit messages to be "lost" due to specific scenarios that would be overly costly to defend against.  Other message queueing systems adopt a philosophy that no message should ever be lost but as a compromise to speed do not promise that a message will be immediately recovered when caught in one of these problematic scenarios, only that it will eventually be recovered and processed fully.

It appears that the philosophy adopted or really the solution requirements lead to different best practices.