We have some "idea" about her stats from the Snowball fight:
Insanity is Ami (who is her own team and we don't know how reduced her numbers actually are) while Team Shadow is Hazou, Shiori and Shikamaru.
The only reason why we can even harm Ami is because we have Shadow clones who could go full explosion on her.
(We also need to ally with Tenten and make her stronger)
Her stats being reduced is important for sure, and means that it's "somewhere better than that". But I disagree on your conclusions based on that data for 2 reasons:
1) we were on a team with Shiori and Shikamaru. While we don't know Shiori's bit, I don't exactly get a combat spec vibe from her. And Shikamaru is not a physical specialist by any stretch (though I'd bet his awareness is insanely high, which helps compensate). So the average of those is not particularly indicative, since we know Hazou has better than poor Athletics. Ami's are at least hers, watered down to some degree.
2) This measures exactly 2 skills, Athletics and thrown weapons. Tenten, Keiko, and Ami are very good at thrown weapons. Naruto and Hazou are Not. Naruto, who I think we can say comfortably is the strongest combatant there, bombed one of those two checks, because he isn't a weapon thrower, and therefore did mediocre. So I'm pretty sure, while interesting, this isn't the most useful tool to compare combat ability.
After all, context is important, right ContextBot?
(Plus obligatory "sealmaster in own home" statement.)
I think the statement "Ami is a fairly new Jonin, who is competent in combat but focuses more of social/political efforts" is an accurate one. I also think that, since Hazou did manage to withstand Zabuza for a hot second, we know that punching up for a second so your more powerful allies can take advantage of the situation does work.
This also applies to us though. We're about to start FOOMING, but we need to be aware that FOOM start up cost plus slow wind up means that we'll still be punching up for a little while, as a competent but new chunin. And we shouldn't assume any enemy is trivial.
(Cut to Honoka accidentally using our best Macerator on us and it inflicting consequences for our hubris, plus a fairly funny update.)
Edit: Tenten is great though. I'm always down for interacting/supporting her as long as we don't impose ourselves or something.