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

[Silver-Strider]

If it's so easy why don't you explain in detail exactly how it should be done?

Armchair programmers at their best.

It's possible for some jobs more than others.

As I stated earlier, WHM used to have skills like Protect, Fluid Aura, etc. back in ARR level content. The code for them should still be in the game so you would only need to adjust the skills to function as low level versions of skills like Aqua Veil, Assize, etc. SE already set this as a precedence when they did similar for MNK by lowering the level of Chakra down to 15 and reintroduced Steel Peak and Howling Fist as low level versions of TFC and Enlightenment, returning skills that once existed in low level content back without much issue.