It is, but what matters in this case is how the result was achieved.
If I roll all 12s and you roll all 18s that's great for you, meanwhile I can rest assured that next time (unless you cheat like a demon) you're not going to repeat that.
If I roll all 12s and you pick all 18s, however, that somewhat forces me into plcking all 18s myself next time in order to keep up because it's very likely you'll pick all 18s at every opportunity.
The whole idea of random is just that: sometimes you're better, sometimes I am, and sometimes we're roughly even.