Very interesting video on several different levels:

There are lots of interesting details...
Why the super deep bottom board setup?
Total lack of ventilation at top?
Given how she is discarding drone comb, can we assume it's all foundationless?
It looks like top bars are narrower (than comb even?) but it also looks like some HUGE bee-space between combs?

And, I gotta ask... why is she not getting stung at all, given how quickly she moves and how much handling is going on!! LOL