As I mentioned I am neither encouraging nor discouraging her from applying to another elite school.
I am disputing the notion that getting rejected at one school (Brown) is as correlated to future rejection at all other elites as you suggest.
I listed other schools that might be of consideration in addition to Weslyan. Duke GTown and Penn (as another Ivy so she never has to look back and wonder what if) would be options that check a lot of OPs boxes.