Have you noticed how nobody complains when we have a run of good luck, but when it goes tits-up for a couple of days all the accusations and conspiracy theories start coming out of the woodwork? Happens every time - so does the return to normal performance, if there is such a thing.
If somebody complained of good luck, that would be strange; on the other hand, it is perfectly normal to complain of bad luck (and that in any field of life, not just bitcoin pool luck!)
Now if you care to take some time and explain to me what exactly your point was, that would be nice (lucky if you like).