I'll likely never import anything ever, but if true, thank Jebus. Region locking is such a silly restriction and something that Nintendo need not worry about. Nintendo handhelds up to DS weren't region locked. It made no difference.

If security was one of the reasons for region locking, Nintendo can find a better way as well as remove a reason to be angry with them. If company image was a reason, I find it highly unlikely that an imported game will cause any sort of PR nightmare.

Region locking these days always strikes me as something motivated by money, with different regions having different (i.e. higher) prices than others after currency exchanges. Whatever small gains Nintendo gets from having different games being way more expensive in different regions, I don't think its worth the ill will they have garnered for having region locked systems.

The "Internal Investigation" will go like this:

Iwata: Someone do some research on region-locking, it's a hot topic it seems.
Employee: Yes sir!
*5 minutes pass*
Employee: Sir, it looks like the smart thing to do, business-wise, and customer-wise.
Iwata: I see....
*Walks back into office*
*Picks up phone*
Iwata: Hello? Hardware dept? Yeah, it's me. Region lock the NX immediately.