I agree, and I think one of the reasons for this is that they've changed the way they recruit women and changed the type of women they recruit.
Early on, it wasn't inconceivable that a woman could make it to TC, and maybe even onto the team, with very little dance experience beyond a few classes. No D1 pom, no dancing since they could walk. They seemed to be mainly recruited and pushed through TC based on physical attributes. So, those few weeks of TC were more necessary to not only teach girls the dances, but teach girls HOW to dance.
Now, DCC scopes out the D1 pom teams to recruit technically talented dancers, and end up pulling women from other professional teams too. The candidates have reached a certain caliber of dance ability already. Sometimes they need help with the specific DCC style, but they (should) have the basics down and pick up choreo quickly because of their prior experience. Because of this, TC really can be done in a shorter amount of time, focused on style and learning choreo-- they could even feasibly provide the dances ahead of time like last year to make it even shorter.