Did you read it? It says 95% of particles, not 100% protection. Testing that has been posted many times shows surgical masks aren't far behind. Now if I was in an environment like a covid ward dense with viral agents, I would be wearing an N95, a face shield, and full gowns, cap, gloves, and shoe coverings but the risk from a quick trip to the grocery store is not that. The particle density will be much, much lower and therefore the level of protection recommended is less. Similarly if I was working in a lab with serious viral agents I'd want a sealed suit with self-enclosed breathing. if I was working in a small, poorly ventilated space with many people, I would also consider an N95.
You started this whole line with your claims that masks don't work but here's my attempt at common ground.
All masks cause a decrease in transmission of respiratory droplets and N95 masks provide better protection than most other masks when worn properly. Do you still want to disagree with that?
The question of what level of masking is required in the general public is much tougher and I would expect you to admit you are simply guessing like most other people. Studies that are done say that any masking helps but it still leaves open to interpretation where to create that balance between public health and all other factors. We can solve the crisis pretty quickly if everyone was forced to stay where they are with the penalty being death if seen out but obviously that's not a reasonable compromise..