I've done further checking on this "Über" prospect. If that's what he is then Sano is the Iron Man and Buxton is Superman. Buxton is on pace to have more SB's by mid season than Tavares will have in 4 1/2 years. He has not demo'd any real power and a PCL BA of less than .333? There was even some comment that he will likely not hold his position because of lack of arm strength. The more I checked, the less I get it. Sano, Arcia & Buxton each seem to be much stronger prospects. But, then again, I admit to being a homer.
You mostly looked at irrelevant stats.
SB's are overrated for a slugging corner OF (he's not a CF but could make it work in the majors).
A 30 game sample size of stats from someone that has had some family issues (IIRC) and at least one minor injury disrupting his first two months.
He's a pure masher that basically destroyed AA last season at age 19/20. However I think buxton and/or Sano will be considered better prospects when they have played in AA/AAA but right now Taveras has played against better comp and retains the top spot (and I agree).