She was approached for MSHPL and turned it down because she didn't want to do embarrassing things like the shower scene from what I can recall. But I wouldn't be surprised if TLC offered her to have her own show and she turned that down too. If that's the case, then that would've been such a big fucking mistake now that you look at 1000 Lbs Sisters: not only does TLC make them look better and more likable, it's also like you said, the tone is not as pathetic as MSHPL. I can't really pinpoint what it is that makes it this way since the concept of the two shows isn't that different, but 1000 Lbs Sisters has a more... cheerful tone? That could be just thanks to the Slaton's personalities though. They are charming in a strange morbid way, and Amber isn't.