Microsoft has a lot of products. It would be unnatural for every employee who worked there to be excited about every single one of those products. I can understand the cognitive dissonance issues of working in a division that produced products that you weren't excited about, but as for the entirety of Microsoft I think that's an unrealistic idea.

The only way to be excited equally about all of Microsoft's products (in preference to all of their competitors) is to have drunken the kool-aid so deeply that you've lost the ability to judge anything fairly. This is a far more dangerous scenario than a company that produces some products that are second run in comparison to some of their rivals. The former is a recipe for a company full of zealots who drive the company into the ground due to their lack of fair judgement, the former is to be expected of any company that has a huge and widely varied product offering spanning multiple industries.