It's not that it was coincidentally similar. She took an entire page, changed a couple of words around. This isn't an homage; it's not flattery. It's barely short of theft. Whereas I don't think that one page in a novel is worth suing over, it makes me consider this author a lazy hack.
I mean, there's nothing wrong with saying, "Wow, that's a brilliant idea!" and using something like that, but to outright take someone else's words... I just can't respect it, especially when she seems unashamed of what she did.