Nah. Grace is like Clark. She can box and wrestle some, but on balance she's a crappy fighter. The thing she brings to the table is superstrength and invulnerability. The first hero thing she ever does is catch a falling jet plane.
Admittedly Andreyko did try to attribute this to her Bana-ness, but that makes no sense in any continuity, regardless of what the Themysciran status quo is. Basically her heritage may be amazon, but her origin story is "she's a meta." Certainly she's no martial artist, and even if she were, she didn't meet any actual amazons until she was an adult, so she wouldn't benefit from the cultural edge anyway.