Godwin's Law is only evoked when a postee complains that the tone of the conversation has become (in their opinion) worthy of comparison with Nazi Germany (not what's going on here).
It would be almost impossible to talk about Star Wars without mentioning WW2 seeing as so much of the Empire and the general feel of the battles were based on WW2 movies.
It is a real shame to read about the ESB AT-ST going.
The design of that version is much better in my opinion than the one shown in ROTJ and as a child it was my favorite moment in the Hoth battle. Cutting them altogether would be like losing the spinning TIE from the asteroid sequence.
Seeing that different walker made the walker attack seem more exotic and realistic (like the Empire had lots of different types of walker for different jobs).
There are only two shots with it in though (it doesn't really need to be in the shot with Luke on the ground), it looks like the same element repeated anyway.
Maybe adding a few really subtle distant elements (almost silhouettes) to establish their presence on the battlefield and leave the one close up shot to let us know what they look, like would work?
As always Ady it's your baby and your call.