Buyers are a nebulous categorization. I agree that we shouldn't try to cage them under any one category. But, that's why I'm not talking about buyers. I'm talking about those of us who care about the consoles. The people who also happen to be the early adopters who preorder these things - and who will then evangelize or complain to friends in the 2nd, 3rd, etc waves.
This could well be a good strategy for Sony to maintain customers by hiding bad news. Who knows. But, there's absolutely no reason for me to give them a pass on that. Xbox needs to show Series X footage ASAP. Sony needs to tell us anything about the box and its features.
I'm in that first category--but only because the box plays games I can't get elsewhere. Truth be told, it would take quite a lot for me to not buy it knowing what games are coming to that. Am I in the minority? Maybe? Who knows. But that's what makes it, as you say, nebulous.
Re: strategy--why are you assuming it's bad news? Or that they are hiding it? They didn't hide the storage space--everyone who knows how drives work knows 825 wasn't 825 and 1 TB wasn't 1TB. Once you get beyond formatting, surely some space was always going to be devoted to the OS, no?
I also don't know why a UI would be bad news. BC could be, depending on what that is. Cross saves could be as well. But that's not this topic.
But like you said--one company has shown hardware and no games, the other company has shown games and no hardware. I would argue one is under a bit more fire on this website than the other, but at the end of the day, November 10th and 12th will be coming before we know it.