who cares, it would kill the series to have the whole party being super strong.
it all started with naruto been the drop out loser with no skillz. sakura been book smart and sasuke been the best in his year.
now sakura is book smart
naruto is really strong and getting smarter and learning new shit
and sasuke is getting stronger having envy build inside him and not been such a cocky lil bastard anymore.
it would suck if sakura all of a sudden got these super powers and was as strong as naruto and sasuke... it would turn out like dragon ball z. with goku vageta and gohan... all been too powerful. plus shes a girl, girls are weak in general.