Originally Posted by KingCanute

My guess is that the flight was overbooked, and the widely publicised local weather issues yesterday may also have played a part in that and subsequent significant changes to flight operations. Perhaps you may have seen or read about the weather system that went through the Gulf yesterday, where many places received over a year's rainfall in 12 hours.

And because your inbound arrived earlier, it was easier to reroute you quickly than those on the later connection that you were eventually held up for (you do not know how many of those people were subsequently offloaded). QR will have been aware of this impeding weather problem, and the later delays and cancellations it would cause, and thus may have been trying to get as many people as possible out as early as possible.

It will not have had anything at all to do with your baggage.

I never understand why people like to use hyperbole like "deception" as a first port of call when there will have been legitimate reasons for whatever it was that happened. The agent who met you at the gate not knowing the full details of why you were being rerouted is highly likely.