Yes that line was just a side note poking fun of sakura's effort and strength. i'd be nice if someone, (anyone) could train her. but seeing as all the other gennins have improved and gotten stronger. it think we'll see how the other half is getting along. it seems that hinata is slightly more confident now. maybe ino and ten-ten will follow suit. actually we always see ten-ten and neji training together. i'm sure she'll get stronger. but if they do show it, it better not be boring.