If you were right, then two things...
1) The return of the three veterans to B1...(none of whom have ever interacted with a male on RLC except when they were forced to) generated a ton of subs all on their own without any promise of guys entering the scene.
2) The couples apartment generates little interest when compared to these other three. Plus...there are MANY couples apartments, with few seldom in the top cams. Yulia and Ivan have only had a plethora of guys through and NO other women and NOBODY watches it