It is well known that many people drop at the last week before the T3 for various reasons. This is a pretty accurate reflection of attendance for the big events that the T3 prepares people for, in fact.
That trend continues.
Of the 23 who registered (25 if you take the word of the two who promised to go), now only 14 remain. If no more people drop, and if 100% of the class makes it through the entire event the prediction will still hold true.
A storm is coming, in the figurative and literal sense. Get ready for a wild ride.