both of these are NOT documentaries, they wildly misrepresent reality and are basically fiction
Read up on what his proposed alternative was.
Perhaps you could give a summary?
Basically he wanted the Army to do a bunch of tests we already knew the outcome of: that the munitions in question would defeat the armor. This wasn't some sort of scandal or surprise to the pentagon. No armored vehicle is invincible, and the Bradley is already as heavily armored as is practical to cross bridges without them collapsing, etc.
Burton made a ton of enemies treating this like some sort of huge scandal he was uncovering, but in reality he was distorting the situation, then used it to popularize his book.
Basically he's just a grifter, but because he was saying contrarian things a bunch of people who had no idea what was actually happening bought into his bullshit.
It's similar to what happened with the "Fighter Mafia" where the public latched onto it without understanding how utterly bullshit the contrarian proposal actually was.