No, that time frame is only the period when you can redeem your S rank. The 3K is supposed to be distributed all at the same time, but because of the amount of players qualified, it takes time for them to give it all out, since it seems they give out by stages, meaning after finished giving out all the first 3Ks, then they will give out the second 3Ks and so on. If for example they were only 10 person who meet the requirements, they would all have gotten the 24K on Friday already.
By the way, Susanowo is fuuuuuun! I made the right choice.