I also suspect that it may be as a fill in because

I also suspect that it may be as a fill in because Dr Bruce is too busy to keep coming to the dog and pony shows so an additional science person along with Dr J is there.

I like the updates, but if we are paying on a per use basis, I'd be ok with conserving the cash for bigger announcements. But if it's a subscription deal where we can binge present for one low price, then NP can host these as much as he wants. Gotta get your money's worth.