Reading about this else where in general this just feels like random PR.
Sony isn't using Direct X ray tracing. Yet they are clearly using Ray tracing. Thus "technical but who cares".
This person gives an example.
It should be interesting to see how each system uses ray tracing and the results in quality and performance. If Sony implementation is custom, how much custom is it and at what level of quality and performance are we going to see compared to AMD RDNA2 feature set. If we go by Spiderman for the PS5, the quality of the RT reflections were pretty low. Hopefully we have an example between both systems to get a good understanding the differences between implementations.