You may not get to see her much, but the few times you get to see her, you better be ready. I've encountered few Samus.
But I consider that low and mid players will always try using the easy characters like Sheik, Zero Suit Samus or Greninja. So the few times you get to see a Samus, it's from somebody who really knows how she works and has a few tricks under the sleeve.
I also like to watch battles and since now you can pick what character battles you want to watch, I always pick Samus videos just to see if I can catch some tips. And you'd be amazed. All Samus users are good as far as I get to see.