Glad you made it OP, congrats! As an immigrant in the US I went through the "Extraordinary Ability" path and the process was a journey of pain and anxiety. Many roundabouts with a lawyer that promised me expertise in the process and it ended up with a NOID (Notice of Intention to Deny - something like that) from USCIS. My wife and I had to study the USCIS manual page by page and re-wrote almost all documentation from the lawyer. It wasn't easy but we made it.
At the same time, the political climate and even the person you get reviewing your application could make a difference. I was denied the first time I applied for PERM after the officer combed through the supporting paperwork to find problems. Was it my lawyer's fault? Did my employer make a mistake in the job search? Was it because it happened in the Trump years? Who knows.
My application for EB2-NIW was recently denied for totally inappropriate reasons. The process has a randomness component to it, what you can do is to maximize your chance of success but it’s still a chance.
OP here: Sorry that you had a bad experience, but glad that you made it through in the end! I would love to talk more about your experience if you're up for it. My email is in my bio.