The problem is they just start way way too many things. Almost everything on that list I have never heard of and probably had very few users. Most other web companies are careful about starting a new service or adding a new feature because it means committing to supporting it for a long time. Google just starts 1 billion projects a year and kills everything that isn't a smash hit meaning you can't depend on anything they release.
Although about 70% of this list was rightfully killed. Stuff like youtube for 3ds and then it includes things that were simply renamed or updated.