Squad Battles Opponents and Points

Of my four randomly generated Squad Battles Opponents, it is almost always the case that one Opponent is garbage and the other three are absurdly good. What happened to the second Opponent being mid-tier and the third alternating between mid and good?

There is also no balance in terms of the points awarded. I can demolish a garbage team on World Class and get 1,900 points. It’s fairly simple. On the other hand, I can barely beat an absurdly good team on professional, and only get around 800 points, despite it being like twice as difficult. I don’t mind that the hard teams are harder to beat even on a lower difficulty level, but at least give me a comparable amount of points for it. Otherwise what’s the benefit of playing difficult teams?