I get called out for my conspiracy theory all the time but I believe that just like auto aim and other stats we don't understand, there are hidden roll stats for each character, causing some people to be bullet magnets, and others harder to hit. I've watched videos of some of the "best" players and they never take any damage. That's absurd. Whereas I have a video of myself, behind a defender titan, he's taking fire and pops his bubble, and I died through the bubble.