Have you been a student in their classes?
I am Shepherd certified. Have been for a few years.
I should add, I have been an NRA instructor for 23 years, an NRA instructor Training Counselor for 5 years. I trained at Front Sight for over 10 years, and a few other schools in between. Was expert pistol/rifle when in the Navy.
Able Shepherd is by far the best protector level training you can get as a civilian, and it is better than most LEO training, on par with SWAT level skills. The program has good relations with many of the local sheriffs and are actually influencing some in how they approach active shooter situations now that ‘good guys with guns’ are often on scene before LEO’s arrive.
The training is not just shooting skills. Its decision making under stress, tactics, individual and team movements, deconfliction, etc.
And guess what? The training team and founders are all strong Christians.