Again you're using excuses that are irrelevant or due to ignorance.
The worse month of all time on my pool was last December where it was 70% luck.
That was a possibility due to the size of the pool back in that month long ago.
With TxFees included that made it an average of 73% PPS
So if you are running a mining setup that costs less than 73% PPS to run it, you made a profit even in my worst month of all time.
The 2nd worst, recent month was, ... March average 97.8% PPS ... ... ... yeah you gotta wonder about these irrelevant excuses ...
Of course the last 6 months average pool PPS per month on my pool was 127%, so anyone mining anywhere else lost out

That's of course historical luck ... for the last 6 months

Quit literally, basically all you are saying is that most bitcoin miners are morons where it comes to finances.
There's no other valid argument for it.