Parker may well have improved immensely since then, he trains non-stop and seems very dedicated to his craft. However that wasn't a "baby" version of Parker, it was less than 2 years ago and Parker was obviously far more experienced than SBW at the time.
I reckon anyone who watches that video with both eyes open would admit that it looked like 2 decent prospects in there. It certainly doesn't look like one clueless guy being baby-sat by a proper fighter.
If you compare the two of them fighting Botha, they both handled him pretty easily with speed and reach, except SBW gassed late while Parker had no need to go there. If I had to predict how a fight would go I reckon SBW would use his jab and athleticism and box pretty competently on the back foot for a number of rounds but once Parker caught up with him it might not be pleasant.
Actually mate... That's exactly what it was...
Parker has made massive leaps in that time... He now spends a lot of his time training in Vegas under Kevin Barry.
If you were to compare both fights against Botha there's a massive difference between the two.
If you take out the shoddy ending... SBW beat Botha with a half decent Jab and his athleticism.
Parker did it with head movement, footwork, good hand speed and more impressively with power.
If I were to pick a winner at moment I would say Parker easily... In fact i would say Parker would likely finish him in the first half of the fight.
Coming from the point of view of someone who watches a lot of boxing... SBW is just far too green to take seriously as a boxer... He does far too many things in the ring that make you cringe and think if he fought some half decent he would be punished.
But what do you expect... He's not really a boxer.. He's a footballer.