There is no proof that he didn't plan for and anticipate the camera. Only proof that he didn't anticipate it working or - perhaps more apt - still working.
Not all (heck not even most) seasoned, successful, and yes - even professional - criminals formally dress for the Home Invaders's Prom or go to yearly home invader trade shows in Vegas for the latest and greatest in kidnapper merch. Indeed, they are usually too busy invading homes. And if they've been successful with minimal change in their standard tools and typical garb, then the 'if it ain't broke don't fix it' mindset probably applies.
That mindset may ultimately get him caught this time since an army of law enforcement, pretty much every major (and minor) media outlet, and a large swath of the general public are collectively looking for him, but it doesn't mean he is a beginner, stupid, naive, or amateur.
JMO.