Pain and suffering is 3x stronger than everlasting affliction

In Development Season of Discovery Phase 4 PTR
1

Shadow priest rune pain and suffering is a copy from everlasting affliction. But can anyone tell me why one rune refreshes only ONE effect while the other one refreshes THREE effects? I mean can you please at least try to be fair somehow?
Remove 1 effect from pain and suffering.
And add 1 effect for everlasting affliction (UA would be nice)

Could not believe that injustice when i just found out. Maybe i am just getting something wrong here then correct me please.

2

Yet again they prove that shadow priest is a much better version of affliction warlock.

3

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4

5

They should also move everlasting affliction to belt slot after improving it, or demonic pact .
It should be possible to use both simultaneous.