Nice try but no.
1. How is using geomatrical objects kiddy? Maybe they didn't want to copy Nintendo.
2. They're are many hardcore and superbloody games for example God of War, Killzone, Resistance e.t.c
3. If you haven't heard only 5% of all games last year were rated M so it's defintely successding Xbox and Wii in that field.
I would go on buy I think I made my point making a few E rated games does not make the console not hardcore. Overall PS3 is a lot more hardcore than casual.