Yes, it would be AWESOME PR for google to laugh in the face of everyone who submits a 3 page pitch tomorrow! HAHAHA suckers. Maybe they should publicly bash every entry that comes in.
Google always launches their April Fools' joke on April, it's always themed to look like a preexisting Google theme, and it's always obviously a joke. This one uses custom font sizes, a custom logo/theme, and it's not funny.
No. That's not how April Fools works. That's not how Google does April Fools. Google's jokes are funny for people who don't spend their lives in front of computers. That's because they're, y'know, actually funny and not inside jokes.