Ya know, I thought the same thing. I didn't really get those gaps. The way those shear webs go in is to place the sheet end in and the sheet isn't wide enough to cover the full span. It would have taken one full piece and another small piece to cover the whole space without a gap. I double checked the plans and sure enough, even the plan show the shear webs not covering the whole space. That wing is plenty strong enough and I am sure I will not be pulling anywhere near the number of Gs it will take to bust that wing so I left it as called out. I did think it odd though.

Bob