I don't know if they have issued public statements yet or not, but the two largest conservative Lutheran denominations after the Missouri Synod, i.e., the Wisconsin Evangelical Lutheran Synod (WELS) and the Evangelical Lutheran Synod (ELS) would, I am fairly certain, share the LCMS position on this issue.
Otherwise, the "logo" is very eye-catching. It's just great for LCMS threads on this forum.
Leni