I think that is why you are wrong,normally it depends on the slot but lately Pragmatic Play have been really really bad as slots people are struggling in all casinos to hit something decent with them.I don't know what happened to them but to me it looks to win huge in Pragmatic slots nowadays is much harder than passing a difficult math test.
I personally have shifted view and got back to Play n Go,I usually play 30-50 dollars and I feel better knowing I have played my chances better as the bonus there will fall within such range playing with minimum bet of 0.10 while in Pragmatic slots even catching the bonus in base spins is becoming mission impossible.F*ck them as the worst provider for me.
Bad for you does not mean that it is also bad for others, because I'm sure there are some other players who win big when you are on bad moment with pragmatic.
I'm sure there were some times when you were also experiencing really bad result with Play n Go for long time.
What you say is normal because when we have our own favorite provider and we will say that other provider is bad although you play less than your favorite provider.
The conclusion is, no matter which game you play, which provider you play, luck is the only factor that will decide the result.