Basses ARE basses. I believe "Bass Guitar" is a term that was invented when electric basses started being built using the same construction methods as guitars. Basses traditionally were not fretted instruments. Bass is bass, guitar is guitar, baritone is baritone.
Yes, technically they are their own distinct class of instrument, in between the guitar and the bass. But they're called "Baritone" because of their tuning, not the length of their neck.
The low tuning necessitates the longer scale length in order to achieve better tone and intonation, not the other way around.
I really don't think i'm being picky. I'm a stickler for using correct terminology so people don't get confused or misled by incorrect information.