The man is right. The 'hardcoe' PC gaming consumer is outnumbered by the console gaming consumer. In the business world 'leading' is a simple word for 'larger consumer base' more often then not. He makes a very good point about development resources verse hardware. Look at some of the very first Playstation games (PSOne) released on launch and then look at the games that came out near the end of its run. Huge difference. The same went for the XBox and PS2. Any system, actually, has evidence that the first games on it look very similar to the last games on the system behind it. That is because developers get better at utilizing what is in a console, or are granted more and more access to it, or are just willing to push their comfort zone more and more. Because console hardware is static, a developer can put much more effort into using every square inch of that console (not to say they all do by any means) and make games that look unbelievable and, more importantly, work identical for every single consumer using that hardware. On a PC, while the high end market hardware is unbelievably leaps and bounds ahead of any console, they'd be targeting a very small group of people that even bother throwing that stuff in their machines if they develop completely around that. Not to mention all the other bits and bobs tossed in that are different from one person's PC to the next. It isn't all about the graphics card and processor. All of that interfaces with each other and any one thing that makes the system pissy will ruin the game, no matter how great of a development or on what hardware.
It is just unrealistic for a company to design a product for an audience that is definitely the minority (top of the line PC users).
As far as id is concerned and how all their products prior to RAGE were PC exclusive, it is quite likely they took a step back and looked at the way things were developing from a marketing and financial aspect and decided that they would reach more people targeting most of the whole spectrum, rather then a fraction of the gaming base. I know people will despise this remark and tear it to pieces any way they can, but that is just the way things have turned out. PC gamers are the minority compared to console gamers.