It's not hard to understand really. Sony was aiming for $399 for the retail price of the PS5, but costs of parts pushed them over to $450.
Also, the fact that they are spending more money on cooling suggests a much higher clock rate of 2 Ghz as well as a much higher power draw.
That essentially means that the Github leak of 9,216 TF would be ballpark.
It's not rocket science... ;-p
I just see the evidence piling up that this is what Sony has been aiming for all along because of cost, but it cost them more than they expected.
Remember: They have to design these consoles years ago, so prices flux over time and it's going to cost them more now as we get a clearer picture before launch.
You are confusing BOM and retail price.
Sony was aiming for a BOM of $400 so they would have taken a lost no matter what at $400 retail .
This $50 can effect the retail price or it might not we have to wait and see.