"it's doubtful that lockitron even knows what it's unlocking"

What about if they have a security breach and a command is issued to unlock all locks (or a large number of locks) not a specific target.

Then you have a bunch of doors that are open and the chance certainly exists that random people will enter those doors because they are unlocked.

While a trained locksmith could probably get past my deadbolt, a random hacker from $current_unpopular_country can't. (Note: this isn't counting non-locksmiths that can also pick a lock). So, using something like this does carry a bigger (if slight) risk. I'm not sure if I'd necessarily trust a relatively new company with controlling my deadbolt.

Then again, I also have a similar setup using an HID tag reader/arduino/relay to control access to my garage door, so it's not like I'm against the technology. It's more that I'm worried about outsourcing the security of my house.

Honestly, the threat profile to me personally is pretty low, but it's still not something I'm 100% comfortable with.

There are some people even who carry lockpicks and locks and practice picking for sport and they are all over, like on /r/lockpicking and on places like HN....

I don't know who these people might be - but I know they are out there.