"The Church has always welcomed all boys to its Scouting units regardless of sexual orientation."
IoW, Hey, per the Mormon church, it doesn't matter what the "sexual orientation" is of your tentmates on BSA outings.
So, hey the Mormon Church doesn't mind an 18 yo gay Eagle scout sleeping in the same tent as teens. Why would it mind other homosexual men sleeping in that same tent?
Why, you could have a gay leader & an 18 yo gay scout sleeping in the same tent..."consenting" adults...why would the Mormon church care about what "convenient" arrangements it sets up for outings?
An 18 year-old cannot share a tent with a minor.