I've also had that. And I'm not even sure whether I want to hold it against them. For some reason it's an industry-wide effort to muddy the waters and slap open source on their products. From the largest company who chose to have "Open" in their name but oppose transparency with every fibre of their body, to Meta, the pioneer of "open source" AI, to the smaller underdogs who pride themselves with publishing their models that way... They've all homed in on that term.

And lots of the journalists and bloggers also pick up on it. I personally think, terms should be well-defined. And open-source had a well-defined meaning.