This has been discussed before, and comes with 2 major flaws:
- If the abilities are there, but not scaled down, you would still trivialize any dungeon by having too much power. Lvl 90 abilities (or even lvl 50) are far too powerful for satasha.
- If the abilities are there, but scaled down, you have to input a lot more effort for the same outcome. Which makes the effort not worth it.

At best it could be part of the unrestricted party options next to ignoring lvl sync. But by default this is not going to work.