I would make two observations ...
Glock pistols, particularly in .40 caliber, are among the most popular guns around these days. They may seem to have more KA-BOOMS because of the total numbers that are in use. Simple math tells me the potential is there.
A barrel obstruction (bullet jacket or even a previously fired bullet) that was stuck in the bore could have played a part in this.
Before drawing any conclusions a lot more information is needed.
Glock pistols, particularly in .40 caliber, are among the most popular guns around these days. They may seem to have more KA-BOOMS because of the total numbers that are in use. Simple math tells me the potential is there.
A barrel obstruction (bullet jacket or even a previously fired bullet) that was stuck in the bore could have played a part in this.
Before drawing any conclusions a lot more information is needed.