As I said JPS.
A front end loss allows a somewhat controlled slide hopefully to a gentle halt although sometimes into a more violent outcome, be that hitting the gravel etc.
Plus, front end losses can be diagnosed somewhat based on telemetry feedback which provides throttle, brake, lean angle, tyre pressure etc information, thus you can get a very good idea of what happened leading up to the washing out
A blown tyre, well just goes and will result in a more violent and uncontrolled or uncontrollable departure from the motorcycle for the rider (Redding did brilliant to hold his as did Mladin all those years back). In addition, the blown tyre generally will occur at higher speeds (Nakano at near 300, Baz at 280+ and Redding) and generally where the speed is higher, the damage or risk is exponentially increased.
With a lowside (be that due to lean angle or unexpected) these can occur at fast or slow speeds but due to the nature of the rider generally being at ground level, the subsequent injury risk is lesser than a rider falling from height in an uncontrolled fashion
Sure you are right in that there have been two tyre failures in thousands of laps thus far but there may well also be 'near failures' of which we are unaware and if you look at year on year figures, the lowside occurred last year and the year before, the blow out did not, thus the priority is the blowout as it is a new phenomenon (relatively speaking)
Edit:
Petrucci was to ride at Qatar but rebroke the hand by riding the Ducati, so maybe we should stop riding Ducati's as they may cause an injury as well
Source -
https://twitter.com/Petrux9