This is so wrong. It's actually more like the opposite, in these particular cases. Fender, or at least Leo Fender, was the first, or at least very early, to mass produce the innovations that you name...which others then went on to refine over the decades.
1. Factory fretless Fenders were released in '69/'70. They were also offered by Music Man in the '70s, and G&L. First, the only person who really knew of Jaco at that point was Wayne Cochran. Second, Jaco didn't even de-fret his bass until after Fender had just released a fretless model. Hmmm. Who's the innovator in that case? The development of the fretless electric bass had absolutely zero to do with Jaco. It's popularity? Yes. But not its innovation.
2. The Fender Bass V was released in 1965. It was tuned E–C, and featured a normal width bass neck (i.e. cramped string spacing). It was modified over time by other companies, for B–G tuning and wider necks. It is the not-so-distant ancestor of the modern-style 5-string electric bass. Fender innovated; others refined.
3. A Leo Fender owned company, CLF Research, working for Music Man, designed and mass produced the "+1" headstock – a design that later became the norm for five string basses. Again, Leo and his team innovated; others liked the idea and adapted it.
Fender took a shot on some of this stuff early, and can be called innovator, despite their designs being rather primitive. Others improved and refined an existing idea; they didn't innovate.
I get what you're saying, because the modern day Fender company is basically just coasting on Leo's and George's (and several other important company players') innovations...but "technological innovation" is the wrong angle to attack from. The Fender company, and the other companies Leo Fender ran, were among the most innovative companies of all time in the field. If you feel the modern-day Fender company is "conservative," then I can get behind that statement...but not that they have not traditionally been an "innovative" company. They have traditionally been quite innovative...just not very refined, a lot of the time.
The bottom line is that if Fender feels that something is worth a lot of profit, they'll do it. I would venture to guess that there isn't a huge market for fanned fret basses...but they might stick their toe in that water at some point, just to try to cash in a bit, if feasible.
Personally, I like Fender as a fairly traditional, conservative manufacturer. Obviously there is enough demand for such a thing to support it, so...whatever. Let them do what they do best, and turn to other companies if you don't want the traditional "Fender thing."