"Balance team tests the fights themseslves"

[Rilifane]

fflogs has the same problem any tool like it tends to have tons of people not using it right or actually understanding it. it also has some major flaws. for example a week one orange parse which is basically the best a person who just hit 90 and started raiding this week could ever do will at some point become a grey parse and said player doing the best they possibly could and would most likely be a boon for any raid group will be treated like one of those idiots I could out dps by sitting on my key board.

I'm not even going to touch the hellish can of worms that comes from a voluntary sample method because that would take forever or more likely just kill everybody here

Not true.
The profile still shows the original parse because the profile always shows the historical ranking, meaning the parse of the clear period during which you killed the boss. If you click on the parse then you will see it in the context of the current clear period which will downgrade it in most cases but not nearly to the extend you're suggesting.
My first week clear of p1s was a 76 at the time we cleared and is still shown as such on my profile. If you click on the parse, it's a 36. So it went from barely-purple to mid-green. The 95 from my co heal would have been a 53 in the context of the latest clear period which is aginst people in full BiS. That's a far cry from orange to grey.
And since someone looking up a person will always have to go through their profile unless given the link to a specific kill, the historical ranking is what they will see first.
So no, an orange-parsing first week raider will not be treated like an idiot because their parse got downgraded to blue at most.

I actually disagree; I think it's also very useful to compare yourself to more skilled/optimal players. I have learned a lot about optimization in a given fight by finding people who perform better than I do, then examining the timelines of their fight logs.

Same here.
I learned a lot and got several good ideas just be peeking over the shoulders of better players. How do they solve certain mechanics in terms of cooldowns? How did they deal with stuns/ phase transitions that interrupt the flow of their rotation? How did that BLM managed to get 100% Ley Line uptime? One player can never have the same wealth of ideas on how to solve mechanics than a collective of good players.