its 1595 in my Mongol Khanate game and Iam still level 7 in ADM tech and I only cored like 3 provinces during the entire time.
i'd estimate there were about 30 administration failures (-1 stab), 15 comets, 5 currency devaluation thingies and another 10 other inflation events
I tried to keep stability at -1 or 0 the entire game. And I took administration as my first idea, which I highly regret. A simple -25% stability cost from religion would have saved me like a few thousand ADM points
Now iam playing Najd and Ive only had like 2 comets and maybe 1-2 other negative stab events in the first 100 years
Just confirmation bias or bad luck. The luck would have to be extraordinarily bad, though, so most likely you are also misremembering. 30 administration failures is the exact maximum you can get in 150 years (assuming you can select the idea group before the first five your pulse). The probability of that is at most 1/6**30 (assuming you don't select a second idea group or match the trigger conditions of the other 5 admin events, then it's even lower). Roughly equal to winning the EuroMillions lottery three times in a row.