Originally Posted by ZeroZet

That is... pretty much exactly that OP said.
In the same vein, 6* in 2nd/3rd place will make her new version have worse rarity than original. Downgrade!

Downgrade, but vastly more accesible than her 6* form. So hey, if you really like that 6*, having her become 2nd or 3rd means you might actually get her new form.