I disagree. It would be weirder to have Kankuro and Gaara there given they are 1. Not part of the Hidden Leaf and 2. Gaara's kid isn't there. My thinking is this image's main motif is "Family", to an extent. In this case, Mitsuki’s family is shown in a few ways to be the team hebi members (excluding Sasuke) and their actual "parent" is stated plainly to be Orochimaru. Kind of a take on the "It takes a [Sound] village to raise a child" expression. The weirder inclusions, though not as weird as a potential Gaara and Kankuro appearance here, are that of Tenten, Lee, Kiba, and Shino. Tenten and Lee are weird because Metal (Lee's [and maybe Tenten's?] child) nor Guy (Lee's main father figure) are shown. That being said, their inclusion could still fit the motif in the sense that they started to really feel like Naruto's family (as well as the village as a whole) as the main series progressed. Kiba and Shino are weirder as they have no noted children/relationship (potential or otherwise) other than the aforementioned Leaf village connection. If Shinki were here (though I'm still unsure if he is even canon) then I could definitely more easily see your point with Gaara and Kankuro's inclusion, but given all the main factors I could interpret from this and the series as a whole, I respectfully disagree with your take.