I'd guess 3 reasons.
1. Because they make such a big deal out of the holidays their marketing hype works. If it wasn't all centered around 1 short period I don't think people would care quite as much about sony not having a bunch of games for 3 months.
2. Their 1st party don't really have a great reputation I guess? So maybe people don't expect as much?
3. PS4 is market leader so there are more likely to be people complaining about it AND they should have alot more big games officially announced by now. Plus they have a better reputation and their lineup should be a hell of a lot better tbh.
I think E3 this year is either going to be be pretty big for both companies or pretty dissappointing.
I don't really have any faith in Microsoft atm and their marketing schemes but at the same time they could well be working on a lot of cool stuff I wouldn't be suprised. Same goes for Sony, I'm expecting some amazing games.... it's just about when they are going to come out / be announced.
