Maybe. What we know factually at this point in time: osxfuse was BSD licensed, Google used it and haven't contributed back. osxfuse is popular project.

If it was GPL licensed, do you think Google would bother to use it? Or would they write their own instead? Would we even know about osxfuse then?

MIT/BSD is amazing on bootstrap phase, when getting code used and building user base is top priority. Monetization always comes later. Using GPL from the start might just turn your first users away and you might never manage to get critical mass of users to be able to monetize product at all.

In this particular case we don't know if there were any other previous attempts at financing it, like have maintainer contacted Google to provide consulting services? Or provide enterprise support to other parties? etc.