The problem with this is, it doesn't even try to give SOME kind of referendum to what 0~1 means. For example, looking at this, it looks like Vice could be worth your time, which it is not. It is far more useful to give a rough idea on the droprates, such as ~10% on Vice and ~50% for all.
The interesting thing here is that MvP supposedly gets a second chance at Phantom weapons, but the rate seems really low.