You are using wrong samples. Bohemia is Celtic expansion area, not the core. Same for Hungary. Some Hungarian La Tene samples are even Slavic like.
You need to use samples from Iron Age Austria.
And they are closer to Iberians than to Germanics.
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Well, i did not find any AUT IA from Hallsttat, but i did from la Tene
https://i.imgur.com/4FDbzzW.png
and looks like u were correct lo, they were very SW like, sry for doubt my bad
@Jgab602
Trying with La Tene samples from Core: (Austria IA)
https://i.imgur.com/awQXkYd.png
Damn, thats a LOT of Celtic