did you want the answer or did you want me to tell you what you wanted to hear?
okay then, alex hates you and is intentionally sabotaging your drops. there, you happy with that answer?
I almost always run 4 chance of legendary cards in my base, I sometimes get only epics for weeks, and sometimes get 2 premiums per batch
I bet you feel silly right now
that's how probability just works. the probability of two separate events happening differently could be exactly the same. it just ended up on the "unfortunate" end of the spectrum for you.