Is Barry Bonds' record "tainted" by his elbow protector?

Here's an article that argues that part of the reason for Barry Bonds' late-career power surge is the elbow guard he wears. According to Michael Witte, the "armor" has special features which limit the motion of Bonds' arm, thus keeping his swing in the correct plane. Among other things.

I have no idea what to make of this; just thought I'd throw it out there.

Hat Tip: John Pastier of SABR