I think the answer lies with merchandising.
The same thing happens with cars and clothing and everything else in our lives. If I am to sell you a new bow (or car, or clothing), and you already have a perfectly good bow, I must make one different enough to get you to "need it". One way is to come up with other uses or slightly different routines so that you , need it. Traditional archery has not changed all that much over the years, so it is a niche market, compared to the bigger archery scheme.
Crossbows are a very in-your-face example of this merchandising.
We are convinced that we need a faster, shinier, newer, lighter, stronger, easier etc anything so that we can jump right in there and be notable, and the market absolutely needs and feeds on that. We, as a species, are extremely gullible and find extreme need in fitting in.
ChuckC