I agree with both of you. A lot of last season could have been a 2013 soap opera, and that is exactly opposite of what the show once was.
But obviously, sex sells, and a show about an ad agency didn't sell well enough, so we can expect to see even more sexy soap opera, and less ad agency.
And I imagine having sets and clothes that perfectly reflect the year proved to be too expensive too.
It DOES still have flashes of brilliance, though, and IS better than almost all of what is on TV, but that is kind of sad.