If you keep killing products quickly after launch, people will hesitate to invest in your products. This is also a problem with startups. I need a problem solved, not be part your incredible journey.
Undoubtedly there remain issues with Eric Schmidt style 'let a thousand flowers bloom' approach to product development, though, there is some upside to it, too (gmail, for ex). That said, I doubt the list on killedbygoogle.com parroted around as a badge of honour of having tried even if failed, is one of them... cognitive dissonance be damned.