That seems very odd, JW's are usually obsessed about anything that might give the appearance of impropriety. To put an unmarried couple together for several hours -at night- just seems (for them) to be totally inappropriate.
Then again, with the constant dumbing down of the org, maybe its just to be expected. Do you think they could even do things like the food service at the conventions back in the day where they fed thousands 2 or three hot meals a day? The guys running the show now are doing good to take attendance.
No Apologies