Not trying to stir up more of a hornet's nest but this is a quote from Stevie herself, indicating her mindset back in the late 80s:
"Rooms on Fire is about me. Rooms on Fire is about ~ um ~ a girl who is a rock'n'roll star who has pretty much accepted the fact that she will never ever be able to be married or have those children that she wanted or the husband that she wanted or that deep, deep love that she wanted and she's accepted it."
More here:
http://www.inherownwords.com/rooms.htm
Now that what she had spoken about has come to pass, I'm sure this has been a major sore spot for her whenever she'd think about Lindsey and his family. Having Lindsey kicked out of the band may have been a conscious (or unconscious) way for her to deal with the situation.