my logic
Ps4 pro had its show case on september 7th and it was an hour long.
Prior to that ps4 pro was talked or hinted at sonys e3 that its coming.
Now, we have a 9 minute something on september 10th.
Thats why
...huh? how does that make sense?
the presentation this time is shorter simply because A: the jump in power is far smaller than it was for the PS4, and B: there's only a single new feature, and that is PSSR.
the PS4 Pro had to sell its 4k capabilities (which was a new feature), had to explain checkerboard rendering (another new thing at that point), and had to sell HDR (yet another new feature)
even the concept of a mid gen refresh was something new for Sony at that point. the only manufacturer that did that before the Pro was Nintendo with their handhelds.
the PS5 Pro is still a 4k system, still uses the same HDR, and simply tries to do what the normal PS5 already does slightly better.
so there's really not much to talk about. the mid gen refresh isn't a new concept anymore either so no need to sell people on that idea
I bet 8 of these 9 minutes will be used to explain how PSSR will improve image quality, and 1 minute will be about how raytracing is now possible in more games... and that's it.