Actually I think the reverse is true. A huge company such as Google has awful lot of lawyers, forward planning, threat analysing and such some of which makes probably no sense at all to any of us.

There's no way they would be unaware of SailfishOS when picking that name up, without someone pointing it out. That they did anyway choose it is of course no proof of malice. Choosing that could go either way, it could also point more people to SailfishOS when googling about the device.

And I say this without having no strong feelings about Google. I use many of their services, and consider them personally a better company than many other big companies.