I do know that Bob Long used a Warpfeed on his Intimmy to help win the World Cup in France.
I saw a ton of WarpFeeds at the StLouis Open. Many more than I would have guessed. As players learn how to make the most of them, more will feel comfortable adding them to their tourney kit.
After losing a big game because mine did not sense my Angel shooting... 5 dry fires when one shot could have won the game DOH! I learned that electros need to have interlinks to control the warpfeed. Since then it was AWESOME. Now, I have it on my EvoX and it works great.
I think the WarpFeed's slow adoption in the pro ranks is mainly due to players not yet knowing how to get the most from them. If I have figured it out... others have too.