Sexy cards are few Specially SR

[Ladies lover]

The last 6 events did not have sexy cards as rewards .
even in the event gacha for those events no sexy SR gacha .

Babe cards are too many and that sucks ( 75 SR card )

moe cards are in middle (47 SR cards)

sexy are not only the fewest they are too few indeed ( 32 SR cards) .

[Tenhou]

Sexy are also usually the most powerful cards, might be why.