I want Goldberg to beat Lesnar because I want it to signal Lesnar going away.
What they've done with Lesnar has been absolutely stupid and a massive mistake. It leaves me speechless. They've brought someone back from the past and made them not only unstoppable but then had them embarrass the guys your brand is going to depend on in the future. Absolutely freaking brainless. It has left the impression that A) guys from the past are head and shoulders stronger in the ring, and B) MMA guys are head and shoulders stronger than pro-wrestling guys.
The meaningful booking would have been to have Lesnar in competitive matches to show how good the current roster is. Have him undefeated, I don't care, just have his opponents look good. SUPER LESNAR is only good for a short-term gain but the negative effects are long-term.
Now, at this point, they're going to have to bring in someone to beat Lesnar. Better to have it be someone with a strong emotional imperative, such as a very last match, who isn't going to stick around and humiliate your roster.
Of course, they could bring up Joe or Nakamura and have them beat Lesnar, which would be awesome, but that would also elevate them way above your current roster, which is also very problematic.
The WWE has made a lot of questionable decisions over the years but this situation is just FUBAR.
As for wrestlers now not meeting the level of wrestlers in the past, that's more a symptom of the times. They're limited now in ways they were not before. Compare what Bray Wyatt can do with what characters like the Undertaker or Kane were allowed to do. No one is freaking afraid of him because all can really do is stalk people. I remember the Four Horsemen or the NWO "breaking" people's arms and legs. Heels now are basically just high school bullies. And if your heel isn't over as a heel then your face won't be over as a face.
It's like Wrestling Lite and people can feel the difference.