I took a look at the US Air Force subreddit[0] and lots of people who maintain these jets are skeptical as to the accidental nature of this incident. According to several comments there are many physical failsafes that would need to be deactivated in order for this to happen. The incident occurred in Belgium but it’s hard to believe their F-16s are significantly different.
[0] https://reddit.com/r/AirForce/comments/9nyorn/belgium_techni...