Is this appropriate for a courthouse wedding and reception dinner? Too nightgown-y?

This dress caught my eye from Shona Joy and I’m wondering if it seems appropriate for a courthouse wedding and reception dinner in Santa Barbara with 28 family members/friends? I posted to r/Tailors because I would only wear it if it was possible to add coverage (potentially nude colored) to the lace that goes across the stomach and down the side. It sounds like it might be possible, so now I’m wondering if it would be appropriate in that case and/or if it looks too much like a nightgown?

Link: https://shonajoy.com/products/stratus-lace-high-neck-maxi-dress-ivory?variant=41386490888276