Most things are built to a price point. Go above that price point and you price yourself out of the market, so they deliver what is "good-enough" for most.
Companies sometimes have to get enough feedback from its customer base (or the courts) before they make any changes. A few years ago, HD upgraded its suspension to include what an aftermarket company was doing to address HD's design. HD never once admitted it "fixed" an issue with the suspension, yet they are producing and selling the mod ever since.
Someone posted a while back that Honda has applied for a new fork patent, so who knows, they may have heard the fork brace crowd (or discovered how many fork braces were being $old by multiple vendor$).