I didn't read an article that said it was based on it, but I just immediately recognized it. I read an interview with Dave from a few years ago where he described getting fender to make his dream baritone, he was playing a danelectro baritone more than regular guitar at the time and had some dream specs. As you can see from my pic and the squier, he wanted a jazzmaster body in Antigua, his favorite fender color, and he wanted a strat output jack. He has a vintage 60's Bass VI, so he sent the neck to the fender custom shop to be recreated, hence the 30 inch scale on the squire. He also wanted a tunematic bridge, which is the only detail not recreated on squire. He tunes it A-A, again, like the squire.
So when I saw the pic with all of those features, I put two and two together.