S4 I got a shako and ross on my very first boss kill. RNG rolls like that simetimes. Mythic use to be free candy. I do think if blizz wanted to reduce the drop rate like this they should have done it over a few seasons and not all at once.
It doesnt change the fact they went from being common in S5 to uncommon in S6.
I dont know 1 person on my friends list who doesnt have multiplies either crafted or found.