Guys like Martz, Sean Peyton, even Belichick, these guys are gamblers, they do goofy shit like this. When it works, people gush (the onside kick in the SB last year), when it fails, they look like dopes (Peyton & Belichick going for it on 4th deep in their own territory in their playoff loses this year, Belichick's 4th down fail vs the Colts last year, and this Bennett run today).
When you have these aggressive mindsets, you take the good with the bad.