Actually, this makes sense of Sega's behaviour last gen.
They released two ports/remakes on Gamecube - Monkey Ball and Sonic Adv 2, and both sold a million. They released a whole bunch of awesome original games on Xbox, all tanked, some horribly. They also released VF4 on the platform with the most competition in the genre, and it did ok to good sales.
So what did they do? Instead of thinking 'hey, the Gamecube audience likes our games, maybe we should try the others there', they released Billy Hatcher. And a kiddie VF spinoff. I seriously think Gamecube fans would have lapped up Orta, VF4 and JSRF, but they were never given the chance. But this paradigm theory makes sense of what the accountants were thinking (even though they were wrong IMO).
On the other hand, the other platforms got the benefit of the doubt. Without any proven audience, Xbox got Sonic and Monkey Ball.