This my observation
In patch 0.1.1, devs staed that rollinv item has more chsnce to roll less desirable mods
But for my experience it seems a lot worse than it was before
For example after rolling 120+ breach ring , id say witout exageration thay 80% of them rolled accuracy rating/evasion/ or both on prefix wich kinda always kill the ring

Another example is a stsff im trying to craft would spend 9x omen and chaos and got 8 times accuracy rating out of 9 omens

Also noticed than when i find something interesting , chaos slamming would pretty much all the time remove the best mod on 1st slam .
Rerolled a few magic jewel augment/annul , annul rng was 50/50

Any crafters willing to share there feedback ?

It’s a slot machine simulator, not real crafting.

Since chaosing is the most efficient thing to do in alot of situations it is indeed more of a gambling than actual crafting, but I can NOT confirm the stuff you say about always removing the best mod or having accuracy/evasion 80% of the time... to me it seems totally random (as it should be).
You might be falling for the confirmation bias (google if u dunno what that is).

some mods are probably weighted more compared to others, thats how it is in poe1 so rolling a shit mod should be statistically more common!

removing mods wasnt weighted from what i remember, but hey its ggg so who knows doing it with a big sample should prove it with a small margin of error

Aboves are only few exemples, i do carft a loottttt
And since patch 0.1.1 it feel somehow worse while they stated it is supose to feel better
In patch 0.1.1 they also did some changes to map density and it is confirmed that they broke perfomance on some maps ( savanah is one of them), anyway this out of subject ...

I mainly put my observation there to see if some more crafty players experience the same

Just an FYI, evasion rating on a breaching ring is one of the desirable stat for the Deadeye and the monk build.

Yeah, im also crafting alot, just wanted to state that to me it seems totally random... I sometimes catch myself thinking it "always removes the best mod first" aswell, but as I said, thats just confirmation bias.
Else I wouldnt have made 100s if not 1000s of Divines by crafting...