Seems like they're nitpicking to me.
Nah, i got mine yesterday under the assumption that voice search was universal. It sucks. You move through the UI just fine, but when Amazon lambasted the input method of the Roku as having to use the remote, the Fire does the same thing. So when I expected to be able to search Netflix, Hulu, and Plex, it gave me no results from either of those platforms.
I bought it hoping it could replace my AppleTV or Roku 3. It can't. My Roku is the most versatile of the bunch at the moment, but only because it has Plex. Oh well, here's hoping for AppleTV 4.