I would argue that's incorrect. Stan's introduction used to be him cooking breakfast, then offering to make some for Lena as well. Now it's him taking an unsolicited picture of Lola. He and Lena spent more time bonding over his job, being able to work from home or really anywhere. A discussion that he initiated, and not Lena trying to probe it out of him. That immediately makes him a far more endearing character. Especially since it makes him comparable to Ian and later a contrast to Robert and Axel. It also sets up Stan as wanting to be more than he is, mentioning he's lonely sitting in his room all day, but that he usually isn't given a chance, as we learn through Louis, seemingly because of his appearance.
Those changes, along with the aforementioned gala changes, makes it clear that Stan was heading in a different direction. Certainly there were still potential traces of Stan's more voyeueristic and creepy personality, the panty theft plot point still existed after all. But those personality traits were not at the forefront of his character, like they are now.