Looks like about the same number for Step 2 CS which I feel like is definitely not the case - so don't look too much into it. There have been multiple threads in the past that talk about which ones potentially require what for interviewing/rank.
n=24 is hard to draw stuff from
You can compare this to the past surveys--which had more respondents:
79% of programs surveyed in 2014 say they require Step2CK for interviews, compared to 67% in the 2016 survey, and 54% in the 2018 survey. So it's actually going down in importance if anything. And, anecdotally, speaking to people who have all applied in the past 1-4 years (and matched successfully, received plenty of interviews) i'd say >50% of them didn't take step 2 until after interview season already started.
I'm not sure what any of this means, it seems as though nothing has changed and if you planned on taking step 2 later that's still fine.
I’m confused by your verb tenses. Did you already interview last year?
Not sure what they are trying to accomplish by bringing Teo periodically to Duke...