Its like theyre not even trying.

Because there's no point. So long as a huge number of the expensive cards are on the reserved list, they really can't make Legacy any more affordable. Reprint things like Force of Will all to hell to tank the price, and any increased demand in Legacy that would cause would drive up the prices of blue-based duals a bit more and keep the overall deck costs the same or higher.

Hell, the pools of available reserve list cards are so small that there are regular buyouts happening where people swoop in to try to hoard as many copies as possible and drive the prices up. This would be even worse if Legacy were more popular.

Finally, there's no real benefit to Wizards trying to make Legacy more approachable. It's a format where it's unusual to have even a card or two from any given set make a splash, unless they're supplemental set cards specifically made and pushed for Legacy. Some of the decks being played in Legacy are the same decks people were playing 10 years ago. There's nothing to be gained from Wizard steering people toward a format where they just ignore 95% of newly released cards.

So there are several reasons that Wizards isn't really trying to make Legacy any more approachable. An occasional reprint of Force as a mythic in a limited run set will help them sell a lot more cards than putting it into a precon deck that'll have a million copies at Walmart, or dropping it as a rare into a big set.