What you're missing here is that traditionally it has been higher framerate and resolution that have absorbed much of the PC's performance advantage.
With consoles games now running at 60fps / 4K (reconstructed or not), even mid range PC's have power to spare in providing console games at resolutions and framerates expected by PC gamers (given that reconstruction is becoming common on the PC as well). Hence developers should be able to offer a lot more on the core graphical elements while remaining confident that their games will remain playable of a wide range of hardware. And this generation RT should offer a relatively straight forward upgrade path. Metro Enhanced and Watch Dogs Legion are good examples of that.
He's also missing that PS5 is actually farther behind the pc then any PS prior. Ray tracing and reconstruction tech take a large part in that, but also the 10TF vs 22+TF in raw compute + IC (36TF in nv's case) and other RDNA2+ features. CPUs are a gen or two behind and aswell a whole ghz lower clocked, ram amounts at 16gb is kinda low aswell, coupled with a paltry BW throughput, last gen they had a better ram amount vs the pc then this time.
Raw nvme speeds are faster aswell at 7gb/s and with decompression on gpus that gap is going to grow even larger. Hardware wise, their far and far behind already now.
With in mind that scaling has become a real thing these days, there are enough reasons to have your games on that platform aswell. Youl always get the best versions, not just higher framerates, resolutions, but also graphical settings, aside from ray tracing etc.
But per the forum title, yes, sony is seemingly getting more and more of their games on pc, and as of late, is quite open about it aswell. I see some trying to spin it into something else, but your in for some dissapointments if you truly believe those theories.