I have done it and this is my take:
When you pin your blueprint before rolling, usually (not always) within 2 or 3 rolls you will get a roll that comes close to maximising BOTH the positive AND negative aspects of that roll for instance: If rolling for increased FSD range you might get a roll that maximises jump-range (max blue lines) at the expense of also maximising heat generation (max red lines). Don't believe me though, test it for yourself. You're rolling anyway, what could it hurt?
Well, for all thousands rolls I did, I tried this as well, while I can tell that aint make any diffrence how roll is rolled, while having pinned down the blueprint. RNG is RNG, u got luck or not.
Only thing that I noticed that gived me better rolls, was entirely skiping animations, and most my godrolls I obtained, was entierly from "skipped" spam rolls. Im preety much sure that alone aint makes any diffrence, but when watched all of 400 dd5 rolls over few months and aint got anything above 135, then did recently next 200 another with skips, finnaly got desired 142 for size 5. I like think of it, as luck charm.
I cannot find what you are referring to in any Patch Notes. I and several friends read them with care many times on publication and none of us have seen what you said.
Almost same thoughs I had, as never would miss such important feature, myself as well. Never saw this in any of patch notes, while only thing I can recall related to it, when Sandro said this is under consideration.
Actually, this if impelemted poperly, would help a lot for anyone who care about serious tuning.
