Sakura is a joke compere to the other girls from other anime since most of the time they beat the boy the same way Karui beat him or the use bat, table there foot etc, people just tend to hate on Sakura because she in standing in the way of NH, SN, some like girls with the submissive attitude plus Hinata looks like a bimbo.
What we see in Sakura and Naruto behavior is a regular Nippon humor in a less intense way than other stundere girls.
Yeah, there are worse tsunderes out there. I think if that specific anime was the Naruto mainstreamed popular, people would go nuts. So yeah.