It shows only the better part but doesn't show the bad part. Poles are divided about usefulness of this uprising, how it was (badly) executed and many believe it was deemed to fail.

The aftermath [1] was that ~220k Poles died and out of that 150-200k civilians, often with mass execution - later on a lot of warsaw population was sometimes bitter toward the uprising’s leadership.

To put it in context: within 2 months 200k people died, similar number like in Hiroshima but almost nobody wordwide know about warsaw uprising.

[1] https://en.wikipedia.org/wiki/Warsaw_Uprising#Aftermath