We probably talk to different sets of people, as I don't even know anybody who ever used Google Docs.
It's not about why this or that person would want to install the MS Office on their Mac (millions do after all). So the pointed flew above their head.
It's about the point that many people having to use Google Docs are doing so because corporate wants them to. (In fact most people using MS Office do it because it's a work requirement too).