Offence to whom, and for what?
Why would you boycott because of it?
Could you explain exactly what your issue is?
If the display was the Battle of Waterloo, would you mind if it said, “please don’t touch the Hussars” (or Hussar’s 🫣)
Is your point that not all German soldiers were paid up Nazi party members?
I’d give you the point for pedantry on accuracy - but still not call it offensive.
There’s a lot written about Gleichschaltung and the relationship between the state and the Wermacht. But, as early as 1934 the Wermacht was giving Jewish soldiers dishonourable discharge.
If you are not a member of the Nazi party, but you perform their (horrific) directive, are you not a Nazi? Are you “just following orders”?
I’ll give you that one of those figures may have been a German conscript who found the regime abhorrent. Equally, the tableau could be fully signed up party members.