335s are
not neck-through-body; they're "set-neck" construction with a mortise and tenon neck joint. I have a feeling that the East Start instruments are built the same way...it's a reasonable way to do it in production. You can see an internal block in a 335, and you may be seeing one on this "uke", but that does not mean it's an extension of the neck; it's a separate internal center block.
Is it time for me to get cranky again about mis-information promoted on the UU?
Really, though, please don't post incorrect statements like this; it just confuses everyone and leads to more and more myths and less and less understanding of how instruments are made and why they are as they are.