Why is the chance for Legacy so inflated?

Mystery Chest 790 RP Mystery Skin 490 RP

Worlds Orb 80 Tickets / 250 RP Legacy Orb 100 Tickets / 295 RP

Legacy RNG loot: AKA pay more for a reduced chance to get what you want when there's a much larger skin pool and chance to get a lower value skin when all current releases are usually 1350+