for example

3tiny pile of bauxite dust can be replaced by 33% alumina dust

Bauxite is source of rutile dust.
Rutile source of Titan.
Titan need to make ME (AE2).
That is nerf. What for?
If you have your modpack - just change exit of ores in txt.

There is such thing as statistical equivalence. 33% chance of 1 full dust is statistically equivalent to 3 100% chances of 3 tiny dust.

It is not a nerf.

This will reduce the sorting pressure

Sorting and packaging of dusts is a fun mechanic needed for ore processing

But it is also true that it can take up a lot of tick time from pure logistics alone, which is an issue even other packs like GTNH had to tackle by trying to get rid of smalls and tinies as much as reasonably possible so that theyre not hogging so much ticktime to process