why the devs take the lazy way out on low lvl content scaling?

[Jojoya]

why as we go lower that current level content we lose skills. as of lvl 90 any thing under lvl 60 is close to not playable and under 50 even more so. why not let you have the skill but adjust them for the content ? then there be some lvl of fun in this old content that out side of being forced in to by roulettes no one really do.

Devs do it for the same reason that lazy players demand to overpower low level content with their high level job toolkits.