This was asked in another thread without an answer and the thread is locked now. It was also way off topic.

Anyway, does anyone else feel the drop rate of Nether vortexes and the patters and trash epics have been significantly reduced? We used to get them consistantly every few pulls now we're lucky if we get one-two vortexs clearing all the trash in SSC.

It's not in any patch notes but I was curious to see if our luck just turned sour.

No.