Well sure, because you can enter a raid wearing anything provided you have a group that will take you. But running 24 heroics in 2 days is not feasible unless you have a TON of free time and are tank spec so you get instant queues. Heck, even as a healer my queue times are 8+ minutes these days. Do you have a job/family? 24 heroics at instant queue times. We'll say the average heroic takes 15 minutes (they are easy). That is 6 hours of heroics. Not super terrible but not likely people would run 6 hours worth in 2 days. Also, if you say an 8 minute queue timer that's an additional 3.2 hours of time wasted bringing your total up to 9.2 hours in 2 days.
So yes, everything you are saying is POSSIBLE. It's just not likely to happen to most people. I don't see why you don't understand this.