As someone once pointed out, it was probably never a coincidence that "Starting Over" shares the initials of "Soap Opera". I think your being away from it for awhile has just given you a fresher, truer perspective. It has always been about daytime drama.The coach you miss is probably Rana, whose contract (according to an LA Times article) was not renewed after the first season because of her obvious inexperience in life coaching. Professional coaches, like therapists, should never let themselves show the personal emotional involvement with their clients that Rana did. And Rana also pretty much left Josie to be coached by Rain, a fellow HG, which wasn't fair to Rain and her own needs.
The 2nd season women you mentioned did graduate, with one big exception - Summer was actually kicked out of the house for repeatedly, despite warnings, interacting with the production crew.