I agree with everything you say here except the last part, if I'm being pedantic. Too many people are using the word "know" when they mean "rumored" or "likely". The only thing we *know* is what MS and Sony have said specifically, and TBH we basically *know* the same things about both consoles.
We don't *know* that Sony has HW RT, because they haven't said it. We don't *know* Sony is using GDDR6, because they haven't said it (I don't think). So we do know a very little bit more about Scarlett then we know about the PS5. However, I would agree that both of those assumptions are pretty good ones, and are therefore likely.
I've said this before, so perhaps worth repeating, but you absolutely cannot determine the price of these consoles based on the specs that have been announced. The SOC is the single biggest BOM cost in a console. However storage type, storage size (esp. with SSD) and amount and type of memory are equally expensive. And the CU count (and by extension the overall size of the silicon) has cost at the system level in terms of cooling, and copper is expensive these days too, so the ultimate silicon area has cost implications in a bunch of different places.
So there is still a ton of variability, beyond TFLOPS, that could affect the price of each of these consoles. You could envision scenarios that are plausible at $299, $399, and $499 that would all allow the existing known claims to be true. You can certainly say some of these scenarios are a stretch, no pricepoint is out of the question based on what's been publicly said IMO.
BTW – it's totally plausible that PS5 is more powerful, and people are right to say that is an option based on what we know, and we should hold equal weight to these rumors. I'm not of fan of the Ad Homenim arguments against people who are posting what they are hearing, although that's an emotionally charged issue (as I well know even with my own post history)
So there are many other variables in this equation beyond raw power. Sony could have more TFLOPS, but less memory and less storage. MS could choose the opposite direction. What I think we should all be able to agree on (and if we can't I'm happy to explain why), is that if both consoles have the exact same feature-set, the prices will be very similar. Otherwise, the price will be different, or there will be difference in some other part of the console OR one company is willing to take a huge loss.
