Leveling Roulette in a nutshell

[Shurrikhan]

While its RNG it still likely to happen if anyone need it for MSQ.

A player cannot exceed level 50 until they've done Sashtasha, yet a party ENTIRELY of players over 50 can still end up in Sashtasha. Clearly, none of them need it for MSQ, and it is highly unlikely that any of those 4 players queued for it specifically.