I have an observation, but no "dog in this fight".
So, pocket carry is "dangerous", even in a proper holster.....but stuffing a gun down into your pants in an IWB holster is not ?
Either way, the muzzle is pointed in a direction that could produce a serious wound.
There is risk in ANY type of carry - done carelessly, the risk increases.
Finally, I will say that the only way I carry is OWB, in a properly fitted holster. But, that is only because I don't have a pocket-sized gun (all of mine are too large for pocket carry). Even in an OWB holster, one could shoot oneself....if one is stupid and careless.
The OPERATOR is the key - and as usual, the MOST important factor is what is between the ears of the OPERATOR.