Haha, just messing with you.
I ran my seramas around 38-40% and they did fine, but humidity is such a variable number! I do think the air cells looked relatively large, compared to full size chicks or even bantams, but I think the egg size does play with our brain a little. I thought the same about my quail hatches. Such tiny eggs. Also with seramas you have to consider the lethal gene factor, and they are pretty dang hard to hatch anyway!
So if you feel like the air cells are way too big, then up the humidity a bit. Unfortunately, you may have to experiment a bit to fine tune them. You may also consider a little higher humidity in those last 3 days. I like 70-75% personally.