IMHO, it becomes much more difficult to trim the leaves off when they are dry, so if you have big volume that can be a sizable task.
Also find the leaves can draw the good sticky from the bud, but I guess not an issue if you make hash/oil out of the leaves
Humidity is my concern, I will clip all the leaves before chopping if the humidity is high, as there is a higher risk of mold with the leaves on